25320768 has 112 divisors (see below), whose sum is σ = 77053440. Its totient is φ = 7257600.

The previous prime is 25320721. The next prime is 25320773. The reversal of 25320768 is 86702352.

It is a super-2 number, since 2×25320768² = 1282282584219648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 39813 + ... + 40443.

Almost surely, 2^25320768 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 25320768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38526720).

25320768 is an abundant number, since it is smaller than the sum of its proper divisors (51732672).

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

25320768 is a wasteful number, since it uses less digits than its factorization.

25320768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 25320768 is about 5031.9745627338. The cubic root of 25320768 is about 293.6470381268.

The spelling of 25320768 in words is "twenty-five million, three hundred twenty thousand, seven hundred sixty-eight".