Fatto generale: 4956 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 4956 is a boring number.
Trivia: 4956 is an unremarkable number.
Data storica: July 26th is the day in 1963 that Syncom 2, the world's first geosynchronous satellite, is launched from Cape Canaveral on a Delta B booster.