25654768 has 40 divisors (see below), whose sum is σ = 52978752. Its totient is φ = 11993088.

The previous prime is 25654753. The next prime is 25654781. The reversal of 25654768 is 86745652.

It is a super-2 number, since 2×25654768² = 1316334242267648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69721 + ... + 70087.

Almost surely, 2^25654768 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 25654768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26489376).

25654768 is an abundant number, since it is smaller than the sum of its proper divisors (27323984).

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

25654768 is a wasteful number, since it uses less digits than its factorization.

25654768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 643 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 25654768 is about 5065.0536028753. The cubic root of 25654768 is about 294.9325441858.

The spelling of 25654768 in words is "twenty-five million, six hundred fifty-four thousand, seven hundred sixty-eight".