255567980 has 12 divisors (see below), whose sum is σ = 536692800. Its totient is φ = 102227184.

The previous prime is 255567971. The next prime is 255568003. The reversal of 255567980 is 89765552.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6389180 + ... + 6389219.

It is an arithmetic number, because the mean of its divisors is an integer number (44724400).

Almost surely, 2^255567980 is an apocalyptic number.

255567980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255567980 is an abundant number, since it is smaller than the sum of its proper divisors (281124820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255567980 is a wasteful number, since it uses less digits than its factorization.

255567980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12778408 (or 12778406 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 47.

The square root of 255567980 is about 15986.4936743490. The cubic root of 255567980 is about 634.6030379025.

The spelling of 255567980 in words is "two hundred fifty-five million, five hundred sixty-seven thousand, nine hundred eighty".