566221256 has 16 divisors (see below), whose sum is σ = 1062499200. Its totient is φ = 282888144.

The previous prime is 566221241. The next prime is 566221297. The reversal of 566221256 is 652122665.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16736 + ... + 37583.

It is an arithmetic number, because the mean of its divisors is an integer number (66406200).

Almost surely, 2^566221256 is an apocalyptic number.

It is an amenable number.

566221256 is a deficient number, since it is larger than the sum of its proper divisors (496277944).

566221256 is a wasteful number, since it uses less digits than its factorization.

566221256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55628 (or 55624 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 566221256 is about 23795.4040940682. The cubic root of 566221256 is about 827.2981559100.

The spelling of 566221256 in words is "five hundred sixty-six million, two hundred twenty-one thousand, two hundred fifty-six".