25122612 has 48 divisors (see below), whose sum is σ = 60060672. Its totient is φ = 8171520.

The previous prime is 25122607. The next prime is 25122631. The reversal of 25122612 is 21622152.

It is a happy number.

It is a super-2 number, since 2×25122612² = 1262291267405088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131437 + ... + 131627.

It is an arithmetic number, because the mean of its divisors is an integer number (1251264).

Almost surely, 2^25122612 is an apocalyptic number.

It is an amenable number.

25122612 is an abundant number, since it is smaller than the sum of its proper divisors (34938060).

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

25122612 is a wasteful number, since it uses less digits than its factorization.

25122612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 406 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 25122612 is about 5012.2462030511. The cubic root of 25122612 is about 292.8790206709.

Adding to 25122612 its reverse (21622152), we get a palindrome (46744764).

The spelling of 25122612 in words is "twenty-five million, one hundred twenty-two thousand, six hundred twelve".