Fatto generale: 5511 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 5511 is an unremarkable number.
Trivia: 5511 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: February 1st is the day in 1979 that Convicted bank robber Patty Hearst is released from prison after her sentence is commuted by President Jimmy Carter.