255849 has 8 divisors (see below), whose sum is σ = 372192. Its totient is φ = 155040.

The previous prime is 255847. The next prime is 255851. The reversal of 255849 is 948552.

It is an interprime number because it is at equal distance from previous prime (255847) and next prime (255851).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255849 - 2¹ = 255847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 7753 = 255849 / (2 + 5 + 5 + 8 + 4 + 9).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255849.

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 7 ways as a sum of consecutive naturals, for example, 3844 + ... + 3909.

It is an arithmetic number, because the mean of its divisors is an integer number (46524).

2²⁵⁵⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

255849 is a deficient number, since it is larger than the sum of its proper divisors (116343).

255849 is a wasteful number, since it uses less digits than its factorization.

255849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7767.

The product of its digits is 14400, while the sum is 33.

The square root of 255849 is about 505.8151836392. The cubic root of 255849 is about 63.4835553755.

The spelling of 255849 in words is "two hundred fifty-five thousand, eight hundred forty-nine".