255768 has 16 divisors (see below), whose sum is σ = 639480. Its totient is φ = 85248.

The previous prime is 255767. The next prime is 255803. The reversal of 255768 is 867552.

It is a happy number.

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 (255763) 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, 5305 + ... + 5352.

2²⁵⁵⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

255768 is an abundant number, since it is smaller than the sum of its proper divisors (383712).

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

255768 is a wasteful number, since it uses less digits than its factorization.

255768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10666 (or 10662 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 255768 is about 505.7351085301. The cubic root of 255768 is about 63.4768551855.

The spelling of 255768 in words is "two hundred fifty-five thousand, seven hundred sixty-eight".