Five hundred five and 00/100 dollars
325 = CCCXXV 505 = DV
$50.50
Quinientos cinco
DV
505/1000
5.05 × 102
around 55 dollars.
Five hundred and five
Five hundred and five.
5,086,099,505
I don't know if you mean 505 or 50500 but 505 is written as five hundred and five - 50500 is written as fifty thousand five hundred