25979228 has 12 divisors (see below), whose sum is σ = 49596792. Its totient is φ = 11808720.

The previous prime is 25979207. The next prime is 25979231. The reversal of 25979228 is 82297952.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 590437 = 25979228 / (2 + 5 + 9 + 7 + 9 + 2 + 2 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295175 + ... + 295262.

It is an arithmetic number, because the mean of its divisors is an integer number (4133066).

Almost surely, 2^25979228 is an apocalyptic number.

It is an amenable number.

25979228 is a deficient number, since it is larger than the sum of its proper divisors (23617564).

25979228 is a wasteful number, since it uses less digits than its factorization.

25979228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590452 (or 590450 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 25979228 is about 5096.9822444266. The cubic root of 25979228 is about 296.1706922723.

The spelling of 25979228 in words is "twenty-five million, nine hundred seventy-nine thousand, two hundred twenty-eight".