56913904 has 40 divisors (see below), whose sum is σ = 114211440. Its totient is φ = 27456000.

The previous prime is 56913869. The next prime is 56913971. The reversal of 56913904 is 40931965.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65827 + ... + 66685.

It is an arithmetic number, because the mean of its divisors is an integer number (2855286).

Almost surely, 2^56913904 is an apocalyptic number.

It is an amenable number.

56913904 is an abundant number, since it is smaller than the sum of its proper divisors (57297536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56913904 is a wasteful number, since it uses less digits than its factorization.

56913904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009 (or 1003 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 56913904 is about 7544.1304336550. The cubic root of 56913904 is about 384.6562490817.

The spelling of 56913904 in words is "fifty-six million, nine hundred thirteen thousand, nine hundred four".