56564867 has 2 divisors, whose sum is σ = 56564868. Its totient is φ = 56564866.

The previous prime is 56564857. The next prime is 56564891. The reversal of 56564867 is 76846565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56564867 - 2⁶ = 56564803 is a prime.

It is not a weakly prime, because it can be changed into another prime (56564857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28282433 + 28282434.

It is an arithmetic number, because the mean of its divisors is an integer number (28282434).

Almost surely, 2^56564867 is an apocalyptic number.

56564867 is a deficient number, since it is larger than the sum of its proper divisors (1).

56564867 is an equidigital number, since it uses as much as digits as its factorization.

56564867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 47.

The square root of 56564867 is about 7520.9618400840. The cubic root of 56564867 is about 383.8683065297.

The spelling of 56564867 in words is "fifty-six million, five hundred sixty-four thousand, eight hundred sixty-seven".