It's worth five dollars, depending on the date and seal color.
If the bill is older than the 1990s please post a new, separate question with its date and seal color.
The last US $500 bills were dated 1934. Please check again and post a new question.
Except for gold certificates, old bills have never been withdrawn so its value is at least $500. However the bill's condition could be more or less of a factor depending on the bill's date and possible series letter. There's some generic information at the question "What is the value of a US 500 dollar bill?" but an in-person evaluation may be needed in light of the amount of wear.
The US didn't print any $500 bills (or any other denominations) dated 1939.
The last US $500 bills were in the 1934 series. Distribution was suspended in 1969. Please check again and post a new question.
The US didn't print any $500 bills with that date. Please check again and post a new question.
The US didn't print any paper money in 1932 due to the Depression. Please check your bill again and post a new question.
On the American $500 bill, William McKinley is featured.
Please check again and post a new, separate question. The US didn't print any bills dated 1956, and the last $500 bills were dated 1934.
Please check again and post a new question. The US didn't print any bills dated 1936, and the last $500 bills carried a 1934 date.
Please don't assume that every old bill is a silver certificate. The banner across its top and the green seal indicate it's a Federal Reserve Note, the same type of paper money used today. There's more information at the question "What is the value of a 1934 A US 500 dollar bill?".
£500 per a water bill for a month
about 3000to 500 hundred