564568220 has 24 divisors (see below), whose sum is σ = 1186239600. Its totient is φ = 225704192.

The previous prime is 564568219. The next prime is 564568229. The reversal of 564568220 is 22865465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564568229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35951 + ... + 49209.

It is an arithmetic number, because the mean of its divisors is an integer number (49426650).

Almost surely, 2^564568220 is an apocalyptic number.

It is an amenable number.

564568220 is an abundant number, since it is smaller than the sum of its proper divisors (621671380).

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

564568220 is a wasteful number, since it uses less digits than its factorization.

564568220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15397 (or 15395 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 564568220 is about 23760.6443515322. The cubic root of 564568220 is about 826.4922950665.

The spelling of 564568220 in words is "five hundred sixty-four million, five hundred sixty-eight thousand, two hundred twenty".