56 is a positive integer between 55 and 57. Properties Edit 56 is an even composite number. 56 is the 6th tetrahedral number. In googology Edit 56 is the last 2 digits of mega. File:56.jpeg Retrieved from "https://large-numbers.fandom.com/wiki/56?oldid=5078" Categories: Pages with broken file links Community content is available under CC-BY-SA unless otherwise noted.