55655972 has 24 divisors (see below), whose sum is σ = 99348480. Its totient is φ = 27276480.

The previous prime is 55655953. The next prime is 55656001. The reversal of 55655972 is 27955655.

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, 44597 + ... + 45827.

It is an arithmetic number, because the mean of its divisors is an integer number (4139520).

Almost surely, 2^55655972 is an apocalyptic number.

It is an amenable number.

55655972 is a deficient number, since it is larger than the sum of its proper divisors (43692508).

55655972 is a wasteful number, since it uses less digits than its factorization.

55655972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451 (or 1449 counting only the distinct ones).

The product of its digits is 472500, while the sum is 44.

The square root of 55655972 is about 7460.2930237357. The cubic root of 55655972 is about 381.8011720795.

The spelling of 55655972 in words is "fifty-five million, six hundred fifty-five thousand, nine hundred seventy-two".