254979 has 12 divisors (see below), whose sum is σ = 377832. Its totient is φ = 165600.

The previous prime is 254977. The next prime is 254987. The reversal of 254979 is 979452.

It is not a de Polignac number, because 254979 - 2¹ = 254977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24 + ... + 714.

It is an arithmetic number, because the mean of its divisors is an integer number (31486).

2²⁵⁴⁹⁷⁹ is an apocalyptic number.

254979 is a deficient number, since it is larger than the sum of its proper divisors (122853).

254979 is a wasteful number, since it uses less digits than its factorization.

254979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 735 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 254979 is about 504.9544533916. The cubic root of 254979 is about 63.4115162500.

It can be divided in two parts, 2549 and 79, that added together give a triangular number (2628 = T₇₂).

The spelling of 254979 in words is "two hundred fifty-four thousand, nine hundred seventy-nine".