25315392 has 56 divisors (see below), whose sum is σ = 67868800. Its totient is φ = 8326656.

The previous prime is 25315373. The next prime is 25315403. The reversal of 25315392 is 29351352.

It is a super-2 number, since 2×25315392² = 1281738144227328, which contains 22 as substring.

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, 14334 + ... + 16002.

Almost surely, 2^25315392 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 25315392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33934400).

25315392 is an abundant number, since it is smaller than the sum of its proper divisors (42553408).

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

25315392 is a wasteful number, since it uses less digits than its factorization.

25315392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1753 counting only the distinct ones).

The product of its digits is 8100, while the sum is 30.

The square root of 25315392 is about 5031.4403504364. The cubic root of 25315392 is about 293.6262546838.

The spelling of 25315392 in words is "twenty-five million, three hundred fifteen thousand, three hundred ninety-two".