25668525 has 24 divisors (see below), whose sum is σ = 44674720. Its totient is φ = 12968640.

The previous prime is 25668523. The next prime is 25668553. The reversal of 25668525 is 52586652.

It is a happy number.

It is not a de Polignac number, because 25668525 - 2¹ = 25668523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25668523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7582 + ... + 10431.

Almost surely, 2^25668525 is an apocalyptic number.

25668525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25668525 is a deficient number, since it is larger than the sum of its proper divisors (19006195).

25668525 is a wasteful number, since it uses less digits than its factorization.

25668525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18045 (or 18040 counting only the distinct ones).

The product of its digits is 144000, while the sum is 39.

The square root of 25668525 is about 5066.4114519056. The cubic root of 25668525 is about 294.9852525425.

The spelling of 25668525 in words is "twenty-five million, six hundred sixty-eight thousand, five hundred twenty-five".