255797 has 4 divisors (see below), whose sum is σ = 269280. Its totient is φ = 242316.

The previous prime is 255767. The next prime is 255803. The reversal of 255797 is 797552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255797 - 2⁶ = 255733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255757) 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, 6713 + ... + 6750.

It is an arithmetic number, because the mean of its divisors is an integer number (67320).

2²⁵⁵⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

255797 is a deficient number, since it is larger than the sum of its proper divisors (13483).

255797 is a wasteful number, since it uses less digits than its factorization.

255797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13482.

The product of its digits is 22050, while the sum is 35.

The square root of 255797 is about 505.7637788533. The cubic root of 255797 is about 63.4792541815.

The spelling of 255797 in words is "two hundred fifty-five thousand, seven hundred ninety-seven".