255504 has 20 divisors (see below), whose sum is σ = 660176. Its totient is φ = 85152.

The previous prime is 255503. The next prime is 255511. The reversal of 255504 is 405552.

It is not an unprimeable number, because it can be changed into a prime (255503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2614 + ... + 2709.

2²⁵⁵⁵⁰⁴ is an apocalyptic number.

255504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

255504 is an abundant number, since it is smaller than the sum of its proper divisors (404672).

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

255504 is a wasteful number, since it uses less digits than its factorization.

255504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334 (or 5328 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 255504 is about 505.4740349415. The cubic root of 255504 is about 63.4550077054.

The spelling of 255504 in words is "two hundred fifty-five thousand, five hundred four".