25156872 has 192 divisors, whose sum is σ = 82521600. Its totient is φ = 7050240.

The previous prime is 25156861. The next prime is 25156909. The reversal of 25156872 is 27865152.

It is a happy number.

25156872 is a `hidden beast` number, since 25 + 1 + 568 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 6.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 811497 + ... + 811527.

It is an arithmetic number, because the mean of its divisors is an integer number (429800).

Almost surely, 2^25156872 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 25156872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41260800).

25156872 is an abundant number, since it is smaller than the sum of its proper divisors (57364728).

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

25156872 is a wasteful number, since it uses less digits than its factorization.

25156872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 66 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 25156872 is about 5015.6626680829. The cubic root of 25156872 is about 293.0120943805.

The spelling of 25156872 in words is "twenty-five million, one hundred fifty-six thousand, eight hundred seventy-two".