580256566 has 4 divisors (see below), whose sum is σ = 870384852. Its totient is φ = 290128282.

The previous prime is 580256549. The next prime is 580256587. The reversal of 580256566 is 665652085.

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

It is a super-2 number, since 2×580256566² = 673395364772224712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145064140 + ... + 145064143.

It is an arithmetic number, because the mean of its divisors is an integer number (217596213).

Almost surely, 2^580256566 is an apocalyptic number.

580256566 is a deficient number, since it is larger than the sum of its proper divisors (290128286).

580256566 is a wasteful number, since it uses less digits than its factorization.

580256566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290128285.

The product of its (nonzero) digits is 432000, while the sum is 43.

The square root of 580256566 is about 24088.5152302918. The cubic root of 580256566 is about 834.0780415290.

The spelling of 580256566 in words is "five hundred eighty million, two hundred fifty-six thousand, five hundred sixty-six".