25680612 has 24 divisors (see below), whose sum is σ = 61197696. Its totient is φ = 8377888.

The previous prime is 25680607. The next prime is 25680643. The reversal of 25680612 is 21608652.

It is a self number, because there is not a number n which added to its sum of digits gives 25680612.

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, 22203 + ... + 23330.

It is an arithmetic number, because the mean of its divisors is an integer number (2549904).

Almost surely, 2^25680612 is an apocalyptic number.

It is an amenable number.

25680612 is an abundant number, since it is smaller than the sum of its proper divisors (35517084).

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

25680612 is a wasteful number, since it uses less digits than its factorization.

25680612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45587 (or 45585 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 25680612 is about 5067.6041676516. The cubic root of 25680612 is about 295.0315469471.

The spelling of 25680612 in words is "twenty-five million, six hundred eighty thousand, six hundred twelve".