25320576 has 64 divisors (see below), whose sum is σ = 67785120. Its totient is φ = 8374272.

The previous prime is 25320571. The next prime is 25320577. The reversal of 25320576 is 67502352.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×25320576² = 1282263137943552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25320571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89331 + ... + 89613.

Almost surely, 2^25320576 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 25320576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33892560).

25320576 is an abundant number, since it is smaller than the sum of its proper divisors (42464544).

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

25320576 is a wasteful number, since it uses less digits than its factorization.

25320576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 25320576 is about 5031.9554846998. The cubic root of 25320576 is about 293.6462959116.

The spelling of 25320576 in words is "twenty-five million, three hundred twenty thousand, five hundred seventy-six".