564640875 has 96 divisors (see below), whose sum is σ = 1093659840. Its totient is φ = 290304000.

The previous prime is 564640849. The next prime is 564640897. The reversal of 564640875 is 578046465.

564640875 is a `hidden beast` number, since 564 + 6 + 4 + 0 + 87 + 5 = 666.

It is not a de Polignac number, because 564640875 - 2¹⁶ = 564575339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 564640875.

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 95 ways as a sum of consecutive naturals, for example, 880555 + ... + 881195.

It is an arithmetic number, because the mean of its divisors is an integer number (11392290).

Almost surely, 2^564640875 is an apocalyptic number.

564640875 is a deficient number, since it is larger than the sum of its proper divisors (529018965).

564640875 is an equidigital number, since it uses as much as digits as its factorization.

564640875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The square root of 564640875 is about 23762.1731960694. The cubic root of 564640875 is about 826.5277476595.

The spelling of 564640875 in words is "five hundred sixty-four million, six hundred forty thousand, eight hundred seventy-five".