566252217 has 6 divisors (see below), whose sum is σ = 817919882. Its totient is φ = 377501472.

The previous prime is 566252177. The next prime is 566252227. The reversal of 566252217 is 712252665.

566252217 is a `hidden beast` number, since 5 + 6 + 625 + 2 + 21 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 566249616 + 2601 = 23796^2 + 51^2 .

It is not a de Polignac number, because 566252217 - 2¹⁰ = 566251193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (566252227) 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, 31458448 + ... + 31458465.

Almost surely, 2^566252217 is an apocalyptic number.

It is an amenable number.

566252217 is a deficient number, since it is larger than the sum of its proper divisors (251667665).

566252217 is a wasteful number, since it uses less digits than its factorization.

566252217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62916919 (or 62916916 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 566252217 is about 23796.0546519796. The cubic root of 566252217 is about 827.3132345335.

The spelling of 566252217 in words is "five hundred sixty-six million, two hundred fifty-two thousand, two hundred seventeen".