25651612 has 12 divisors (see below), whose sum is σ = 51303280. Its totient is φ = 10993536.

The previous prime is 25651603. The next prime is 25651651. The reversal of 25651612 is 21615652.

25651612 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 916129 = 25651612 / (2 + 5 + 6 + 5 + 1 + 6 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458037 + ... + 458092.

Almost surely, 2^25651612 is an apocalyptic number.

It is an amenable number.

25651612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25651612 is a wasteful number, since it uses less digits than its factorization.

25651612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916140 (or 916138 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 25651612 is about 5064.7420467384. The cubic root of 25651612 is about 294.9204496792.

The spelling of 25651612 in words is "twenty-five million, six hundred fifty-one thousand, six hundred twelve".