564253209 has 40 divisors (see below), whose sum is σ = 911182272. Its totient is φ = 345915360.

The previous prime is 564253187. The next prime is 564253237. The reversal of 564253209 is 902352465.

564253209 is a `hidden beast` number, since 5 + 642 + 5 + 3 + 2 + 0 + 9 = 666.

It is not a de Polignac number, because 564253209 - 2⁵ = 564253177 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564257209) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 326622 + ... + 328344.

Almost surely, 2^564253209 is an apocalyptic number.

It is an amenable number.

564253209 is a deficient number, since it is larger than the sum of its proper divisors (346929063).

564253209 is a wasteful number, since it uses less digits than its factorization.

564253209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059 (or 2050 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 564253209 is about 23754.0145870124. The cubic root of 564253209 is about 826.3385477169.

The spelling of 564253209 in words is "five hundred sixty-four million, two hundred fifty-three thousand, two hundred nine".