56690055 has 24 divisors (see below), whose sum is σ = 102536928. Its totient is φ = 28919616.

The previous prime is 56690047. The next prime is 56690059. The reversal of 56690055 is 55009665.

56690055 is a `hidden beast` number, since 566 + 90 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 56690055 - 2³ = 56690047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56690059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26352 + ... + 28421.

It is an arithmetic number, because the mean of its divisors is an integer number (4272372).

Almost surely, 2^56690055 is an apocalyptic number.

56690055 is a deficient number, since it is larger than the sum of its proper divisors (45846873).

56690055 is a wasteful number, since it uses less digits than its factorization.

56690055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54807 (or 54804 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 56690055 is about 7529.2798460411. The cubic root of 56690055 is about 384.1512872309.

The spelling of 56690055 in words is "fifty-six million, six hundred ninety thousand, fifty-five".