55570788 has 72 divisors (see below), whose sum is σ = 172897088. Its totient is φ = 14655168.

The previous prime is 55570769. The next prime is 55570813. The reversal of 55570788 is 88707555.

It is a happy number.

55570788 is a `hidden beast` number, since 5 + 5 + 570 + 78 + 8 = 666.

It is a super-2 number, since 2×55570788² = 6176224957881888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5206 + ... + 11757.

Almost surely, 2^55570788 is an apocalyptic number.

It is an amenable number.

55570788 is an abundant number, since it is smaller than the sum of its proper divisors (117326300).

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

55570788 is a wasteful number, since it uses less digits than its factorization.

55570788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16993 (or 16988 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 45.

The square root of 55570788 is about 7454.5816784042. The cubic root of 55570788 is about 381.6062845899.

The spelling of 55570788 in words is "fifty-five million, five hundred seventy thousand, seven hundred eighty-eight".