564491225 has 12 divisors (see below), whose sum is σ = 703601916. Its totient is φ = 449249280.

The previous prime is 564491201. The next prime is 564491237. The reversal of 564491225 is 522194465.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 16556761 + 547934464 = 4069^2 + 23408^2 .

It is not a de Polignac number, because 564491225 - 2²² = 560296921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53672 + ... + 63321.

It is an arithmetic number, because the mean of its divisors is an integer number (58633493).

Almost surely, 2^564491225 is an apocalyptic number.

It is an amenable number.

564491225 is a deficient number, since it is larger than the sum of its proper divisors (139110691).

564491225 is a wasteful number, since it uses less digits than its factorization.

564491225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117196 (or 117191 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 564491225 is about 23759.0240750751. The cubic root of 564491225 is about 826.4547214158.

It can be divided in two parts, 5644 and 91225, that added together give a palindrome (96869).

The spelling of 564491225 in words is "five hundred sixty-four million, four hundred ninety-one thousand, two hundred twenty-five".