55768488 has 32 divisors (see below), whose sum is σ = 139639200. Its totient is φ = 18560448.

The previous prime is 55768469. The next prime is 55768513. The reversal of 55768488 is 88486755.

It is a super-2 number, since 2×55768488² = 6220248507612288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55768488.

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, 18495 + ... + 21297.

It is an arithmetic number, because the mean of its divisors is an integer number (4363725).

Almost surely, 2^55768488 is an apocalyptic number.

It is an amenable number.

55768488 is an abundant number, since it is smaller than the sum of its proper divisors (83870712).

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

55768488 is a wasteful number, since it uses less digits than its factorization.

55768488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641 (or 3637 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 51.

The square root of 55768488 is about 7467.8302069611. The cubic root of 55768488 is about 382.0582862917.

The spelling of 55768488 in words is "fifty-five million, seven hundred sixty-eight thousand, four hundred eighty-eight".