Fatto matematico: 5776 is the square of the last half of its digits.
Trivia: 5776 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: October 24th is the day in 2005 that Hurricane Wilma makes landfall in Florida resulting in 35 direct 26 indirect fatalities and causing $20.6B USD in damage.