25791312 has 40 divisors (see below), whose sum is σ = 70549056. Its totient is φ = 8091136.

The previous prime is 25791307. The next prime is 25791343. The reversal of 25791312 is 21319752.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25791312.

It is a congruent number.

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, 14988 + ... + 16619.

Almost surely, 2^25791312 is an apocalyptic number.

It is an amenable number.

25791312 is an abundant number, since it is smaller than the sum of its proper divisors (44757744).

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

25791312 is a wasteful number, since it uses less digits than its factorization.

25791312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31635 (or 31629 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 25791312 is about 5078.5147435052. The cubic root of 25791312 is about 295.4548646853.

The spelling of 25791312 in words is "twenty-five million, seven hundred ninety-one thousand, three hundred twelve".