25939812 has 36 divisors (see below), whose sum is σ = 62245680. Its totient is φ = 8407584.

The previous prime is 25939799. The next prime is 25939813. The reversal of 25939812 is 21893952.

It is not an unprimeable number, because it can be changed into a prime (25939813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15639 + ... + 17217.

Almost surely, 2^25939812 is an apocalyptic number.

It is an amenable number.

25939812 is an abundant number, since it is smaller than the sum of its proper divisors (36305868).

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

25939812 is a wasteful number, since it uses less digits than its factorization.

25939812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660 (or 1621 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 25939812 is about 5093.1141750406. The cubic root of 25939812 is about 296.0208318672.

The spelling of 25939812 in words is "twenty-five million, nine hundred thirty-nine thousand, eight hundred twelve".