25457792 has 32 divisors (see below), whose sum is σ = 51591600. Its totient is φ = 12509440.

The previous prime is 25457791. The next prime is 25457797. The reversal of 25457792 is 29775452.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (25457791) 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, 5867 + ... + 9237.

Almost surely, 2^25457792 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 25457792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25795800).

25457792 is an abundant number, since it is smaller than the sum of its proper divisors (26133808).

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

25457792 is an equidigital number, since it uses as much as digits as its factorization.

25457792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444 (or 3432 counting only the distinct ones).

The product of its digits is 176400, while the sum is 41.

The square root of 25457792 is about 5045.5715236235. The cubic root of 25457792 is about 294.1757783890.

The spelling of 25457792 in words is "twenty-five million, four hundred fifty-seven thousand, seven hundred ninety-two".