It depends on whether your 500,000 Lira are Old Lira or New Lira. If they are Old Lira (aside from the fact that this currency is defunct) it would be worth around $0.28 USD. If these are New Lira, it would be worth about $277,800.00 USD.
1 New Turkish lira is worth (March 2009) about US$0.75. So 5 lira is about US$3.75
It's worth 5 cents...
The rates change every day. Use this currency converter to calculate it.
As of November 17, 2009, the exchange rate is 0.6732. This makes 5 Lira worth $3.37 in US Dollars.
That's an older out-of-circulation Turkish Lira banknote. Turkey now uses a currency unit called the "New Turkish Lira," and they could only be exchanged until 2016, but if it was it would be 5,000,000 old Turkish lira to 5 new Turkish lira. (Currency conversion varies, but today (March 27, 2017), 5 new Turkish lira are worth about $1.38 US dollars, or 153 Japanese yen.) To a collector, an old 5,000,000 Lira note, depending on how nice-looking it is and how circulated it was, might be worth more, but likely not more than 10 times more, even if it is in perfect condition, and probably much less.
That's an older out-of-circulation Turkish Lira banknote. Turkey now uses a currency unit called the "New Turkish Lira," and they could only be exchanged until 2016, but if it was it would be 5,000,000 old Turkish lira to 5 new Turkish lira. (Currency conversion varies, but today (March 27, 2017), 5 new Turkish lira are worth about $1.38 US dollars.) To a collector, an old 5,000,000 Lira note, depending on how nice-looking it is and how circulated it was, might be worth more, but likely not more than 10 times more, even if it is in perfect condition, and probably much less.
Common circulated coins from the 1950's are still only 3 to 5 cents.
It can be worth about $5 depending on the condition of the leather.
1954 lira was an anomaly due to ww2 1955 lira was 625 to the US dollar
Please see this link for a list of prices
5¥, unless it's around MS-60 uncirculated, then maybe 100¥.