General fact: 85529 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 85529 is an unremarkable number.
Trivia: 85529 is an uninteresting number.
Historical date: March 3rd is the day in 1924 that the 1400-year-old Islamic caliphate is abolished when Caliph Abdul Mejid II of the Ottoman Empire is deposed.