Older $50 bills didn't get as much use because that was a significant amount of money 3 decades ago, so it's possible that some are still in circulation.
In any case, the government has never withdrawn any Federal Reserve Notes from circulation nor do they keep track of specific bills. Individual bills are returned for destruction only when a bank receives them and sorts out those that are too worn for further use.
Bottom line, there's no way to be 100% certain how many remain.
The term you are looking for is "circulation" rather than "rotation", and yes, the $50 is still in circulation (that is, is still in daily use) in the United States.
It's still only worth 50 cents.
1,5,10, 20, 50, 100-bigger bills have been taken out of circulation to discourage drug dealers and or money laundering.
Yes, they're still available from banks and have never been withdrawn from circulation. They're just not in common use in most parts of the country.
50 cents, it's very common has no silver and is still in circulation.
No Kennedy half dollars made for general circulation after 1969 have any silver, the 1991 is just 50 cents and is still in circulation.
$50 is all it is worth. No one will give you a penny more for it. I have several thousand $50 bills dating from 1950's through 2009. Each one is worth exactly, $50.
Both of these coins are still potentially in circulation. Unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they are worth 50 cents and One Dollar respectively.
Yes. It has plastified $20 and $50 bills, as well as regular, paper bills of $100, $200, $500 and $1000 denominations.
50 cents, they are made of copper nickel and found commonly in circulation. They carry no extra premium beyond face value.
Yes. The Australian 50 cent coin has been issued in every year except 1967 and 1968.
As of 01/2009 auction prices for a circulated 1934-C $50 bill are face value to $70 depending on how worn it is. Despite their age, most series-1934 $50 bills are not scarce. $50 was a considerable amount of money then so (relatively) high-denomination bills didn't see a lot of circulation.