55980812 has 12 divisors (see below), whose sum is σ = 98224896. Its totient is φ = 27916560.

The previous prime is 55980811. The next prime is 55980829. The reversal of 55980812 is 21808955.

It is not an unprimeable number, because it can be changed into a prime (55980811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16739 + ... + 19802.

It is an arithmetic number, because the mean of its divisors is an integer number (8185408).

Almost surely, 2^55980812 is an apocalyptic number.

It is an amenable number.

55980812 is a deficient number, since it is larger than the sum of its proper divisors (42244084).

55980812 is a wasteful number, since it uses less digits than its factorization.

55980812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36928 (or 36926 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 55980812 is about 7482.0326115301. The cubic root of 55980812 is about 382.5425347490.

The spelling of 55980812 in words is "fifty-five million, nine hundred eighty thousand, eight hundred twelve".