25976520 has 96 divisors (see below), whose sum is σ = 85924800. Its totient is φ = 6804096.

The previous prime is 25976513. The next prime is 25976537. The reversal of 25976520 is 2567952.

25976520 is a `hidden beast` number, since 2 + 597 + 65 + 2 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20629 + ... + 21851.

It is an arithmetic number, because the mean of its divisors is an integer number (895050).

Almost surely, 2^25976520 is an apocalyptic number.

25976520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25976520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42962400).

25976520 is an abundant number, since it is smaller than the sum of its proper divisors (59948280).

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

25976520 is a wasteful number, since it uses less digits than its factorization.

25976520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 25976520 is about 5096.7165901196. The cubic root of 25976520 is about 296.1604012544.

The spelling of 25976520 in words is "twenty-five million, nine hundred seventy-six thousand, five hundred twenty".