56207657 has 16 divisors (see below), whose sum is σ = 62775744. Its totient is φ = 49896000.

The previous prime is 56207651. The next prime is 56207659. The reversal of 56207657 is 75670265.

56207657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-56207657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56207657.

It is not an unprimeable number, because it can be changed into a prime (56207651) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 141383 + ... + 141779.

It is an arithmetic number, because the mean of its divisors is an integer number (3923484).

Almost surely, 2^56207657 is an apocalyptic number.

It is an amenable number.

56207657 is a deficient number, since it is larger than the sum of its proper divisors (6568087).

56207657 is a wasteful number, since it uses less digits than its factorization.

56207657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 56207657 is about 7497.1766018949. The cubic root of 56207657 is about 383.0585503136.

The spelling of 56207657 in words is "fifty-six million, two hundred seven thousand, six hundred fifty-seven".