Fait général: 4505 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 4505 is an unremarkable number.
Culture générale: 4505 is a boring number.
Date historique: May 1st is the day in 1927 that the first cooked meals on a scheduled flight are introduced on an Imperial Airways flight from London to Paris.