Fatto generale: 10555 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 10555 is an unremarkable number.
Trivia: 10555 is a boring number.
Data storica: November 23rd is the day in 1963 that the BBC broadcasts the first ever episode of Doctor Who (starring William Hartnell) which is the world's longest running science fiction drama.