564557004 has 36 divisors (see below), whose sum is σ = 1556809800. Its totient is φ = 171077760.

The previous prime is 564556969. The next prime is 564557009. The reversal of 564557004 is 400755465.

It is a happy number.

564557004 is a `hidden beast` number, since 5 + 645 + 5 + 7 + 0 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×564557004² = 637449221530912032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 564557004.

It is not an unprimeable number, because it can be changed into a prime (564557009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 712429 + ... + 713220.

Almost surely, 2^564557004 is an apocalyptic number.

It is an amenable number.

564557004 is an abundant number, since it is smaller than the sum of its proper divisors (992252796).

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

564557004 is a wasteful number, since it uses less digits than its factorization.

564557004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425670 (or 1425665 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 564557004 is about 23760.4083298246. The cubic root of 564557004 is about 826.4868218579.

The spelling of 564557004 in words is "five hundred sixty-four million, five hundred fifty-seven thousand, four".