255788 has 12 divisors (see below), whose sum is σ = 482160. Its totient is φ = 118032.

The previous prime is 255767. The next prime is 255803. The reversal of 255788 is 887552.

It is a plaindrome in base 10.

It is an unprimeable number.

255788 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 2408 + ... + 2511.

It is an arithmetic number, because the mean of its divisors is an integer number (40180).

2²⁵⁵⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

255788 is a deficient number, since it is larger than the sum of its proper divisors (226372).

255788 is a wasteful number, since it uses less digits than its factorization.

255788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936 (or 4934 counting only the distinct ones).

The product of its digits is 22400, while the sum is 35.

The square root of 255788 is about 505.7548813408. The cubic root of 255788 is about 63.4785096849.

The spelling of 255788 in words is "two hundred fifty-five thousand, seven hundred eighty-eight".