255278 has 8 divisors (see below), whose sum is σ = 386760. Its totient is φ = 126360.

The previous prime is 255259. The next prime is 255313. The reversal of 255278 is 872552.

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

It is a self number, because there is not a number n which added to its sum of digits gives 255278.

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 255278.

It is an unprimeable 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, 368 + ... + 803.

It is an arithmetic number, because the mean of its divisors is an integer number (48345).

2²⁵⁵²⁷⁸ is an apocalyptic number.

255278 is a deficient number, since it is larger than the sum of its proper divisors (131482).

255278 is a wasteful number, since it uses less digits than its factorization.

255278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282.

The product of its digits is 5600, while the sum is 29.

The square root of 255278 is about 505.2504329538. The cubic root of 255278 is about 63.4362929794.

The spelling of 255278 in words is "two hundred fifty-five thousand, two hundred seventy-eight".