25952631 has 16 divisors (see below), whose sum is σ = 35628768. Its totient is φ = 16793600.

The previous prime is 25952627. The next prime is 25952677. The reversal of 25952631 is 13625952.

It is not a de Polignac number, because 25952631 - 2² = 25952627 is a prime.

It is a super-2 number, since 2×25952631² = 1347078111644322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 25952592 and 25952601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25952621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31201 + ... + 32021.

It is an arithmetic number, because the mean of its divisors is an integer number (2226798).

Almost surely, 2^25952631 is an apocalyptic number.

25952631 is a deficient number, since it is larger than the sum of its proper divisors (9676137).

25952631 is a wasteful number, since it uses less digits than its factorization.

25952631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122.

The product of its digits is 16200, while the sum is 33.

The square root of 25952631 is about 5094.3724834370. The cubic root of 25952631 is about 296.0695866041.

The spelling of 25952631 in words is "twenty-five million, nine hundred fifty-two thousand, six hundred thirty-one".