Hecho general: 9955 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 9955 is an uninteresting number.
Trivia: 9955 is a boring number.
Fecha histórica: April 3rd is the day in 1981 that the Osborne 1, the first successful portable computer, is unveiled at the West Coast Computer Faire in San Francisco.