25906872 has 16 divisors (see below), whose sum is σ = 64767240. Its totient is φ = 8635616.

The previous prime is 25906871. The next prime is 25906913. The reversal of 25906872 is 27860952.

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 25906872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25906871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539703 + ... + 539750.

Almost surely, 2^25906872 is an apocalyptic number.

It is an amenable number.

25906872 is an abundant number, since it is smaller than the sum of its proper divisors (38860368).

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

25906872 is a wasteful number, since it uses less digits than its factorization.

25906872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079462 (or 1079458 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 25906872 is about 5089.8793698869. The cubic root of 25906872 is about 295.8954768523.

The spelling of 25906872 in words is "twenty-five million, nine hundred six thousand, eight hundred seventy-two".