25279313 has 4 divisors (see below), whose sum is σ = 25867248. Its totient is φ = 24691380.

The previous prime is 25279283. The next prime is 25279351. The reversal of 25279313 is 31397252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25279313 - 2⁶ = 25279249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25279313.

It is not an unprimeable number, because it can be changed into a prime (25279613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293903 + ... + 293988.

It is an arithmetic number, because the mean of its divisors is an integer number (6466812).

Almost surely, 2^25279313 is an apocalyptic number.

It is an amenable number.

25279313 is a deficient number, since it is larger than the sum of its proper divisors (587935).

25279313 is an equidigital number, since it uses as much as digits as its factorization.

25279313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587934.

The product of its digits is 11340, while the sum is 32.

The square root of 25279313 is about 5027.8537170447. The cubic root of 25279313 is about 293.4866982393.

The spelling of 25279313 in words is "twenty-five million, two hundred seventy-nine thousand, three hundred thirteen".