25605912 has 16 divisors (see below), whose sum is σ = 64014840. Its totient is φ = 8535296.

The previous prime is 25605911. The next prime is 25605917. The reversal of 25605912 is 21950652.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25605912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25605911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533433 + ... + 533480.

Almost surely, 2^25605912 is an apocalyptic number.

It is an amenable number.

25605912 is an abundant number, since it is smaller than the sum of its proper divisors (38408928).

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

25605912 is a wasteful number, since it uses less digits than its factorization.

25605912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066922 (or 1066918 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 25605912 is about 5060.2284533408. The cubic root of 25605912 is about 294.7452056390.

The spelling of 25605912 in words is "twenty-five million, six hundred five thousand, nine hundred twelve".