255275979 has 32 divisors (see below), whose sum is σ = 403132416. Its totient is φ = 140607360.

The previous prime is 255275971. The next prime is 255275983. The reversal of 255275979 is 979572552.

It is not a de Polignac number, because 255275979 - 2³ = 255275971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255275971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205749 + ... + 206985.

It is an arithmetic number, because the mean of its divisors is an integer number (12597888).

Almost surely, 2^255275979 is an apocalyptic number.

255275979 is a deficient number, since it is larger than the sum of its proper divisors (147856437).

255275979 is a wasteful number, since it uses less digits than its factorization.

255275979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595.

The product of its digits is 1984500, while the sum is 51.

The square root of 255275979 is about 15977.3583235778. The cubic root of 255275979 is about 634.3612557353.

The spelling of 255275979 in words is "two hundred fifty-five million, two hundred seventy-five thousand, nine hundred seventy-nine".