25940512 has 48 divisors (see below), whose sum is σ = 55544832. Its totient is φ = 11854080.

The previous prime is 25940483. The next prime is 25940513. The reversal of 25940512 is 21504952.

It is not an unprimeable number, because it can be changed into a prime (25940513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52587 + ... + 53077.

It is an arithmetic number, because the mean of its divisors is an integer number (1157184).

Almost surely, 2^25940512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25940512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27772416).

25940512 is an abundant number, since it is smaller than the sum of its proper divisors (29604320).

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

25940512 is a wasteful number, since it uses less digits than its factorization.

25940512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 633 counting only the distinct ones).

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

The square root of 25940512 is about 5093.1828948115. The cubic root of 25940512 is about 296.0234946045.

The spelling of 25940512 in words is "twenty-five million, nine hundred forty thousand, five hundred twelve".