Fatto generale: 61556 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 61556 is an uninteresting number.
Trivia: 61556 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: July 13th is the day in 1973 that Alexander Butterfield reveals the existence of the "Nixon tapes" to the special Senate committee investigating the Watergate break in.