255392880 has 80 divisors (see below), whose sum is σ = 817281024. Its totient is φ = 65905920.

The previous prime is 255392873. The next prime is 255392881. The reversal of 255392880 is 88293552.

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

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255392881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9724 + ... + 24603.

Almost surely, 2^255392880 is an apocalyptic number.

255392880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255392880 is an abundant number, since it is smaller than the sum of its proper divisors (561888144).

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

255392880 is a wasteful number, since it uses less digits than its factorization.

255392880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34374 (or 34368 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 255392880 is about 15981.0162380244. The cubic root of 255392880 is about 634.4580740212.

The spelling of 255392880 in words is "two hundred fifty-five million, three hundred ninety-two thousand, eight hundred eighty".