25631079 has 16 divisors (see below), whose sum is σ = 35481600. Its totient is φ = 16440480.

The previous prime is 25631069. The next prime is 25631107. The reversal of 25631079 is 97013652.

It is not a de Polignac number, because 25631079 - 2⁴ = 25631063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25631029) 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 15 ways as a sum of consecutive naturals, for example, 17622 + ... + 19020.

It is an arithmetic number, because the mean of its divisors is an integer number (2217600).

Almost surely, 2^25631079 is an apocalyptic number.

25631079 is a deficient number, since it is larger than the sum of its proper divisors (9850521).

25631079 is a wasteful number, since it uses less digits than its factorization.

25631079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 25631079 is about 5062.7145880446. The cubic root of 25631079 is about 294.8417383418.

The spelling of 25631079 in words is "twenty-five million, six hundred thirty-one thousand, seventy-nine".