General fact: 47540 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 47540 is a boring number.
Trivia: 47540 is an unremarkable number.
Historical date: February 27th is the day in 425 that the University of Constantinople is founded by Emperor Theodosius II at the urging of his wife Aelia Eudocia.