566022321 has 12 divisors (see below), whose sum is σ = 818330448. Its totient is φ = 377005464.

The previous prime is 566022313. The next prime is 566022371. The reversal of 566022321 is 123220665.

566022321 is a `hidden beast` number, since 56 + 602 + 2 + 3 + 2 + 1 = 666.

It is not a de Polignac number, because 566022321 - 2³ = 566022313 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (566022371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17895 + ... + 38108.

It is an arithmetic number, because the mean of its divisors is an integer number (68194204).

Almost surely, 2^566022321 is an apocalyptic number.

It is an amenable number.

566022321 is a deficient number, since it is larger than the sum of its proper divisors (252308127).

566022321 is a wasteful number, since it uses less digits than its factorization.

566022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57132 (or 57129 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 566022321 is about 23791.2236129208. The cubic root of 566022321 is about 827.2012574892.

Adding to 566022321 its reverse (123220665), we get a palindrome (689242986).

The spelling of 566022321 in words is "five hundred sixty-six million, twenty-two thousand, three hundred twenty-one".