55791328 has 24 divisors (see below), whose sum is σ = 110685960. Its totient is φ = 27680640.

The previous prime is 55791319. The next prime is 55791343. The reversal of 55791328 is 82319755.

55791328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55791328² = 6225344560007168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2463 + ... + 10846.

It is an arithmetic number, because the mean of its divisors is an integer number (4611915).

Almost surely, 2^55791328 is an apocalyptic number.

It is an amenable number.

55791328 is a deficient number, since it is larger than the sum of its proper divisors (54894632).

55791328 is a wasteful number, since it uses less digits than its factorization.

55791328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13450 (or 13442 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 55791328 is about 7469.3592764038. The cubic root of 55791328 is about 382.1104365327.

The spelling of 55791328 in words is "fifty-five million, seven hundred ninety-one thousand, three hundred twenty-eight".