564557957 has 16 divisors (see below), whose sum is σ = 590295552. Its totient is φ = 539343360.

The previous prime is 564557923. The next prime is 564557999. The reversal of 564557957 is 759755465.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 564557957 - 2⁶ = 564557893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 564557899 and 564557908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564547957) 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, 1303613 + ... + 1304045.

It is an arithmetic number, because the mean of its divisors is an integer number (36893472).

Almost surely, 2^564557957 is an apocalyptic number.

It is an amenable number.

564557957 is a deficient number, since it is larger than the sum of its proper divisors (25737595).

564557957 is a wasteful number, since it uses less digits than its factorization.

564557957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its digits is 6615000, while the sum is 53.

The square root of 564557957 is about 23760.4283841853. The cubic root of 564557957 is about 826.4872869078.

The spelling of 564557957 in words is "five hundred sixty-four million, five hundred fifty-seven thousand, nine hundred fifty-seven".