25982520 has 64 divisors (see below), whose sum is σ = 79863840. Its totient is φ = 6758400.

The previous prime is 25982497. The next prime is 25982531. The reversal of 25982520 is 2528952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2280 + ... + 7560.

Almost surely, 2^25982520 is an apocalyptic number.

25982520 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 25982520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39931920).

25982520 is an abundant number, since it is smaller than the sum of its proper divisors (53881320).

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

25982520 is a wasteful number, since it uses less digits than its factorization.

25982520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336 (or 5332 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 25982520 is about 5097.3051703817. The cubic root of 25982520 is about 296.1832016604.

The spelling of 25982520 in words is "twenty-five million, nine hundred eighty-two thousand, five hundred twenty".