25348631 has 24 divisors (see below), whose sum is σ = 32503680. Its totient is φ = 19546800.

The previous prime is 25348627. The next prime is 25348643. The reversal of 25348631 is 13684352.

It is not a de Polignac number, because 25348631 - 2² = 25348627 is a prime.

It is a super-2 number, since 2×25348631² = 1285106187148322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25348031) 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 23 ways as a sum of consecutive naturals, for example, 70430 + ... + 70788.

It is an arithmetic number, because the mean of its divisors is an integer number (1354320).

Almost surely, 2^25348631 is an apocalyptic number.

25348631 is a deficient number, since it is larger than the sum of its proper divisors (7155049).

25348631 is a wasteful number, since it uses less digits than its factorization.

25348631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 508 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 25348631 is about 5034.7423965879. The cubic root of 25348631 is about 293.7547084804.

It can be divided in two parts, 253 and 48631, that added together give a palindrome (48884).

The spelling of 25348631 in words is "twenty-five million, three hundred forty-eight thousand, six hundred thirty-one".