25297792 has 64 divisors (see below), whose sum is σ = 56720160. Its totient is φ = 11151360.

The previous prime is 25297787. The next prime is 25297799. The reversal of 25297792 is 29779252.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25297799) 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, 37942 + ... + 38602.

Almost surely, 2^25297792 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 25297792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28360080).

25297792 is an abundant number, since it is smaller than the sum of its proper divisors (31422368).

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

25297792 is a wasteful number, since it uses less digits than its factorization.

25297792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 699 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The square root of 25297792 is about 5029.6910441895. The cubic root of 25297792 is about 293.5581930588.

The spelling of 25297792 in words is "twenty-five million, two hundred ninety-seven thousand, seven hundred ninety-two".