Fatto generale: 63553 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 63553 is an unremarkable number.
Trivia: 63553 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: December 31st is the day in 1879 that Thomas Edison demonstrates incandescent lighting to the public for the first time, in Menlo Park, New Jersey.