25653279 has 8 divisors (see below), whose sum is σ = 34228480. Its totient is φ = 17090136.

The previous prime is 25653269. The next prime is 25653301. The reversal of 25653279 is 97235652.

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

It is not a de Polignac number, because 25653279 - 2⁴ = 25653263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25653209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4992 + ... + 8730.

It is an arithmetic number, because the mean of its divisors is an integer number (4278560).

Almost surely, 2^25653279 is an apocalyptic number.

25653279 is a deficient number, since it is larger than the sum of its proper divisors (8575201).

25653279 is a wasteful number, since it uses less digits than its factorization.

25653279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6029.

The product of its digits is 113400, while the sum is 39.

The square root of 25653279 is about 5064.9066131569. The cubic root of 25653279 is about 294.9268381242.

It can be divided in two parts, 256 and 53279, that added together give a palindrome (53535).

The spelling of 25653279 in words is "twenty-five million, six hundred fifty-three thousand, two hundred seventy-nine".