56015860 has 24 divisors (see below), whose sum is σ = 117824616. Its totient is φ = 22369920.

The previous prime is 56015837. The next prime is 56015887. The reversal of 56015860 is 6851065.

It can be written as a sum of positive squares in 4 ways, for example, as 32764176 + 23251684 = 5724^2 + 4822^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12750 + ... + 16570.

It is an arithmetic number, because the mean of its divisors is an integer number (4909359).

Almost surely, 2^56015860 is an apocalyptic number.

It is an amenable number.

56015860 is an abundant number, since it is smaller than the sum of its proper divisors (61808756).

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

56015860 is a wasteful number, since it uses less digits than its factorization.

56015860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563 (or 4561 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 56015860 is about 7484.3743893528. The cubic root of 56015860 is about 382.6223511079.

The spelling of 56015860 in words is "fifty-six million, fifteen thousand, eight hundred sixty".