255128880 has 80 divisors (see below), whose sum is σ = 825304320. Its totient is φ = 65074944.

The previous prime is 255128869. The next prime is 255128893. The reversal of 255128880 is 88821552.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17590 + ... + 28629.

It is an arithmetic number, because the mean of its divisors is an integer number (10316304).

Almost surely, 2^255128880 is an apocalyptic number.

255128880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255128880 is an abundant number, since it is smaller than the sum of its proper divisors (570175440).

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

255128880 is a wasteful number, since it uses less digits than its factorization.

255128880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46258 (or 46252 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 255128880 is about 15972.7543022486. The cubic root of 255128880 is about 634.2393852326.

The spelling of 255128880 in words is "two hundred fifty-five million, one hundred twenty-eight thousand, eight hundred eighty".