56900520 has 96 divisors (see below), whose sum is σ = 186170400. Its totient is φ = 15071616.

The previous prime is 56900449. The next prime is 56900539. The reversal of 56900520 is 2500965.

56900520 is a `hidden beast` number, since 56 + 90 + 0 + 520 = 666.

56900520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63999 + ... + 64881.

It is an arithmetic number, because the mean of its divisors is an integer number (1939275).

Almost surely, 2^56900520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56900520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93085200).

56900520 is an abundant number, since it is smaller than the sum of its proper divisors (129269880).

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

56900520 is a wasteful number, since it uses less digits than its factorization.

56900520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 56900520 is about 7543.2433342694. The cubic root of 56900520 is about 384.6260945120.

The spelling of 56900520 in words is "fifty-six million, nine hundred thousand, five hundred twenty".