56855530 has 16 divisors (see below), whose sum is σ = 103868640. Its totient is φ = 22402512.

The previous prime is 56855507. The next prime is 56855567. The reversal of 56855530 is 3555865.

It is a self number, because there is not a number n which added to its sum of digits gives 56855530.

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, 41760 + ... + 43099.

It is an arithmetic number, because the mean of its divisors is an integer number (6491790).

Almost surely, 2^56855530 is an apocalyptic number.

56855530 is a deficient number, since it is larger than the sum of its proper divisors (47013110).

56855530 is a wasteful number, since it uses less digits than its factorization.

56855530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84933.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 56855530 is about 7540.2606055759. The cubic root of 56855530 is about 384.5246959617.

The spelling of 56855530 in words is "fifty-six million, eight hundred fifty-five thousand, five hundred thirty".