566722831 has 4 divisors (see below), whose sum is σ = 570859632. Its totient is φ = 562586032.

The previous prime is 566722777. The next prime is 566722847. The reversal of 566722831 is 138227665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 566722831 - 2⁷ = 566722703 is a prime.

It is a super-2 number, since 2×566722831² = 642349534353309122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566720831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2068195 + ... + 2068468.

It is an arithmetic number, because the mean of its divisors is an integer number (142714908).

Almost surely, 2^566722831 is an apocalyptic number.

566722831 is a deficient number, since it is larger than the sum of its proper divisors (4136801).

566722831 is a wasteful number, since it uses less digits than its factorization.

566722831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136800.

The product of its digits is 120960, while the sum is 40.

The square root of 566722831 is about 23805.9410862079. The cubic root of 566722831 is about 827.5423652793.

The spelling of 566722831 in words is "five hundred sixty-six million, seven hundred twenty-two thousand, eight hundred thirty-one".