55972912 has 10 divisors (see below), whose sum is σ = 108447548. Its totient is φ = 27986448.

The previous prime is 55972909. The next prime is 55972919. The reversal of 55972912 is 21927955.

It is not an unprimeable number, because it can be changed into a prime (55972919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1749138 + ... + 1749169.

Almost surely, 2^55972912 is an apocalyptic number.

It is an amenable number.

55972912 is a deficient number, since it is larger than the sum of its proper divisors (52474636).

55972912 is a wasteful number, since it uses less digits than its factorization.

55972912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498315 (or 3498309 counting only the distinct ones).

The product of its digits is 56700, while the sum is 40.

The square root of 55972912 is about 7481.5046614969. The cubic root of 55972912 is about 382.5245391294.

The spelling of 55972912 in words is "fifty-five million, nine hundred seventy-two thousand, nine hundred twelve".