255843 has 24 divisors (see below), whose sum is σ = 439296. Its totient is φ = 140400.

The previous prime is 255841. The next prime is 255847. The reversal of 255843 is 348552.

It is not a de Polignac number, because 255843 - 2¹ = 255841 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255843.

It is not an unprimeable number, because it can be changed into a prime (255841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1888 + ... + 2018.

It is an arithmetic number, because the mean of its divisors is an integer number (18304).

2²⁵⁵⁸⁴³ is an apocalyptic number.

255843 is a deficient number, since it is larger than the sum of its proper divisors (183453).

255843 is a wasteful number, since it uses less digits than its factorization.

255843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 172 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 255843 is about 505.8092525844. The cubic root of 255843 is about 63.4830591136.

It can be divided in two parts, 2558 and 43, that added together give a square (2601 = 51²).

The spelling of 255843 in words is "two hundred fifty-five thousand, eight hundred forty-three".