255408 has 40 divisors (see below), whose sum is σ = 700848. Its totient is φ = 79872.

The previous prime is 255383. The next prime is 255413. The reversal of 255408 is 804552.

255408 is nontrivially palindromic in base 5.

255408 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660 + ... + 972.

2²⁵⁵⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350424).

255408 is an abundant number, since it is smaller than the sum of its proper divisors (445440).

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

255408 is a wasteful number, since it uses less digits than its factorization.

255408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 255408 is about 505.3790656527. The cubic root of 255408 is about 63.4470594361.

The spelling of 255408 in words is "two hundred fifty-five thousand, four hundred eight".