564972269 has 6 divisors (see below), whose sum is σ = 566993226. Its totient is φ = 562958480.

The previous prime is 564972263. The next prime is 564972281. The reversal of 564972269 is 962279465.

It can be written as a sum of positive squares in 3 ways, for example, as 294534244 + 270438025 = 17162^2 + 16445^2 .

It is not a de Polignac number, because 564972269 - 2⁸ = 564972013 is a prime.

It is a super-2 number, since 2×564972269² = 638387329478016722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564972263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82559 + ... + 89139.

It is an arithmetic number, because the mean of its divisors is an integer number (94498871).

Almost surely, 2^564972269 is an apocalyptic number.

It is an amenable number.

564972269 is a deficient number, since it is larger than the sum of its proper divisors (2020957).

564972269 is an frugal number, since it uses more digits than its factorization.

564972269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7167 (or 6874 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The square root of 564972269 is about 23769.1453148825. The cubic root of 564972269 is about 826.6894154734.

The spelling of 564972269 in words is "five hundred sixty-four million, nine hundred seventy-two thousand, two hundred sixty-nine".