Hecho matemático: 49649 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 49649 is an uninteresting number.
Fecha histórica: December 7th is the day in 1995 that the Galileo spacecraft arrives at Jupiter, a little more than six years after it was launched by Space Shuttle Atlantis during Mission STS-34.