25089680 has 80 divisors (see below), whose sum is σ = 72745344. Its totient is φ = 7818240.

The previous prime is 25089679. The next prime is 25089703. The reversal of 25089680 is 8698052.

It is a tau number, because it is divible by the number of its divisors (80).

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, 4124 + ... + 8196.

Almost surely, 2^25089680 is an apocalyptic number.

25089680 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 25089680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36372672).

25089680 is an abundant number, since it is smaller than the sum of its proper divisors (47655664).

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

25089680 is a wasteful number, since it uses less digits than its factorization.

25089680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104 (or 4098 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 25089680 is about 5008.9599718904. The cubic root of 25089680 is about 292.7509911305.

The spelling of 25089680 in words is "twenty-five million, eighty-nine thousand, six hundred eighty".