255900 has 36 divisors (see below), whose sum is σ = 741272. Its totient is φ = 68160.

The previous prime is 255887. The next prime is 255907. The reversal of 255900 is 9552.

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 (255907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127 + ... + 726.

2²⁵⁵⁹⁰⁰ is an apocalyptic number.

255900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370636).

255900 is an abundant number, since it is smaller than the sum of its proper divisors (485372).

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

255900 is a wasteful number, since it uses less digits than its factorization.

255900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 255900 is about 505.8655947977. The cubic root of 255900 is about 63.4877732882.

The spelling of 255900 in words is "two hundred fifty-five thousand, nine hundred".