55570770 has 24 divisors (see below), whose sum is σ = 144484236. Its totient is φ = 14818848.

The previous prime is 55570769. The next prime is 55570813. The reversal of 55570770 is 7707555.

It can be written as a sum of positive squares in 2 ways, for example, as 52838361 + 2732409 = 7269^2 + 1653^2 .

It is a super-2 number, since 2×55570770² = 6176220956785800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308637 + ... + 308816.

Almost surely, 2^55570770 is an apocalyptic number.

55570770 is an abundant number, since it is smaller than the sum of its proper divisors (88913466).

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

55570770 is a wasteful number, since it uses less digits than its factorization.

55570770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617466 (or 617463 counting only the distinct ones).

The product of its (nonzero) digits is 42875, while the sum is 36.

The square root of 55570770 is about 7454.5804710929. The cubic root of 55570770 is about 381.6062433877.

The spelling of 55570770 in words is "fifty-five million, five hundred seventy thousand, seven hundred seventy".