566815972 has 12 divisors (see below), whose sum is σ = 1050276780. Its totient is φ = 266736896.

The previous prime is 566815969. The next prime is 566816027. The reversal of 566815972 is 279518665.

It can be written as a sum of positive squares in 2 ways, for example, as 151634596 + 415181376 = 12314^2 + 20376^2 .

It is a super-2 number, since 2×566815972² = 642560692228609568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4167697 + ... + 4167832.

It is an arithmetic number, because the mean of its divisors is an integer number (87523065).

Almost surely, 2^566815972 is an apocalyptic number.

It is an amenable number.

566815972 is a deficient number, since it is larger than the sum of its proper divisors (483460808).

566815972 is a wasteful number, since it uses less digits than its factorization.

566815972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8335550 (or 8335548 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The square root of 566815972 is about 23807.8972612031. The cubic root of 566815972 is about 827.5876983751.

The spelling of 566815972 in words is "five hundred sixty-six million, eight hundred fifteen thousand, nine hundred seventy-two".