25634768 has 20 divisors (see below), whose sum is σ = 51270528. Its totient is φ = 12403680.

The previous prime is 25634761. The next prime is 25634771. The reversal of 25634768 is 86743652.

It is a happy number.

25634768 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25634761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25346 + ... + 26337.

Almost surely, 2^25634768 is an apocalyptic number.

It is an amenable number.

25634768 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25634768 is a wasteful number, since it uses less digits than its factorization.

25634768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51722 (or 51716 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 25634768 is about 5063.0789051722. The cubic root of 25634768 is about 294.8558828757.

The spelling of 25634768 in words is "twenty-five million, six hundred thirty-four thousand, seven hundred sixty-eight".