564069231 has 64 divisors (see below), whose sum is σ = 986204160. Its totient is φ = 314772480.

The previous prime is 564069229. The next prime is 564069239. The reversal of 564069231 is 132960465.

It is a happy number.

564069231 is a `hidden beast` number, since 5 + 640 + 6 + 9 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 564069231 - 2¹ = 564069229 is a prime.

It is a super-2 number, since 2×564069231² = 636348194721862722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564069239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 236115 + ... + 238491.

It is an arithmetic number, because the mean of its divisors is an integer number (15409440).

Almost surely, 2^564069231 is an apocalyptic number.

564069231 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

564069231 is a deficient number, since it is larger than the sum of its proper divisors (422134929).

564069231 is a wasteful number, since it uses less digits than its factorization.

564069231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461 (or 2455 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 564069231 is about 23750.1417048404. The cubic root of 564069231 is about 826.2487271440.

The spelling of 564069231 in words is "five hundred sixty-four million, sixty-nine thousand, two hundred thirty-one".