255825 has 24 divisors (see below), whose sum is σ = 471200. Its totient is φ = 136080.

The previous prime is 255803. The next prime is 255839. The reversal of 255825 is 528552.

It is not a de Polignac number, because 255825 - 2⁹ = 255313 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255825.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 486 + ... + 864.

2²⁵⁵⁸²⁵ is an apocalyptic number.

255825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255825 is a deficient number, since it is larger than the sum of its proper divisors (215375).

255825 is a wasteful number, since it uses less digits than its factorization.

255825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 387 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 255825 is about 505.7914590026. The cubic root of 255825 is about 63.4815702814.

The spelling of 255825 in words is "two hundred fifty-five thousand, eight hundred twenty-five".