General fact: 36573 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 36573 is an unremarkable number.
Trivia: 36573 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Historical date: February 18th is the day in 1991 that the IRA explodes bombs in the early morning at Paddington station and Victoria station in London.