56535666 has 32 divisors (see below), whose sum is σ = 124200000. Its totient is φ = 17014080.

The previous prime is 56535649. The next prime is 56535671. The reversal of 56535666 is 66653565.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6960 + ... + 12708.

It is an arithmetic number, because the mean of its divisors is an integer number (3881250).

Almost surely, 2^56535666 is an apocalyptic number.

56535666 is an abundant number, since it is smaller than the sum of its proper divisors (67664334).

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

56535666 is a wasteful number, since it uses less digits than its factorization.

56535666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5914.

The product of its digits is 486000, while the sum is 42.

The square root of 56535666 is about 7519.0202819250. The cubic root of 56535666 is about 383.8022392076.

The spelling of 56535666 in words is "fifty-six million, five hundred thirty-five thousand, six hundred sixty-six".