25668612 has 36 divisors (see below), whose sum is σ = 65228800. Its totient is φ = 8510832.

The previous prime is 25668607. The next prime is 25668619. The reversal of 25668612 is 21686652.

25668612 is a `hidden beast` number, since 2 + 566 + 86 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25668619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5373 + ... + 8955.

Almost surely, 2^25668612 is an apocalyptic number.

It is an amenable number.

25668612 is an abundant number, since it is smaller than the sum of its proper divisors (39560188).

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

25668612 is a wasteful number, since it uses less digits than its factorization.

25668612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792 (or 3787 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 25668612 is about 5066.4200378571. The cubic root of 25668612 is about 294.9855858130.

The spelling of 25668612 in words is "twenty-five million, six hundred sixty-eight thousand, six hundred twelve".