25231612 has 24 divisors (see below), whose sum is σ = 50589056. Its totient is φ = 10786608.

The previous prime is 25231603. The next prime is 25231631. The reversal of 25231612 is 21613252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13783 + ... + 15505.

Almost surely, 2^25231612 is an apocalyptic number.

It is an amenable number.

25231612 is an abundant number, since it is smaller than the sum of its proper divisors (25357444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25231612 is a wasteful number, since it uses less digits than its factorization.

25231612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257 (or 2255 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 25231612 is about 5023.1078029443. The cubic root of 25231612 is about 293.3019829902.

Adding to 25231612 its reverse (21613252), we get a palindrome (46844864).

The spelling of 25231612 in words is "twenty-five million, two hundred thirty-one thousand, six hundred twelve".