255976560 has 120 divisors (see below), whose sum is σ = 982481760. Its totient is φ = 58507776.

The previous prime is 255976547. The next prime is 255976561. The reversal of 255976560 is 65679552.

255976560 is a `hidden beast` number, since 2 + 5 + 597 + 6 + 56 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255976561) 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 23 ways as a sum of consecutive naturals, for example, 20355 + ... + 30434.

It is an arithmetic number, because the mean of its divisors is an integer number (8187348).

Almost surely, 2^255976560 is an apocalyptic number.

255976560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255976560 is an abundant number, since it is smaller than the sum of its proper divisors (726505200).

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

255976560 is a wasteful number, since it uses less digits than its factorization.

255976560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50815 (or 50806 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The square root of 255976560 is about 15999.2674832318. The cubic root of 255976560 is about 634.9410406746.

The spelling of 255976560 in words is "two hundred fifty-five million, nine hundred seventy-six thousand, five hundred sixty".