25978752 has 64 divisors (see below), whose sum is σ = 76683600. Its totient is φ = 8658432.

The previous prime is 25978727. The next prime is 25978759. The reversal of 25978752 is 25787952.

It is a happy number.

25978752 is a `hidden beast` number, since 2 + 597 + 8 + 7 + 52 = 666.

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

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 25978698 and 25978707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25978759) 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, 303 + ... + 7214.

Almost surely, 2^25978752 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 25978752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38341800).

25978752 is an abundant number, since it is smaller than the sum of its proper divisors (50704848).

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

25978752 is an equidigital number, since it uses as much as digits as its factorization.

25978752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7540 (or 7522 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 25978752 is about 5096.9355499162. The cubic root of 25978752 is about 296.1688834155.

The spelling of 25978752 in words is "twenty-five million, nine hundred seventy-eight thousand, seven hundred fifty-two".