Fatto generale: 7522 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 7522 is a boring number.
Trivia: 7522 is an uninteresting number.
Data storica: August 4th is the day in 1965 that the Constitution of Cook Islands comes into force, giving the Cook Islands self-governing status within New Zealand.