25426492 has 72 divisors (see below), whose sum is σ = 59122224. Its totient is φ = 9451008.

The previous prime is 25426487. The next prime is 25426501. The reversal of 25426492 is 29462452.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43023 + ... + 43609.

It is an arithmetic number, because the mean of its divisors is an integer number (821142).

Almost surely, 2^25426492 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 25426492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29561112).

25426492 is an abundant number, since it is smaller than the sum of its proper divisors (33695732).

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

25426492 is a wasteful number, since it uses less digits than its factorization.

25426492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 626 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 25426492 is about 5042.4688397649. The cubic root of 25426492 is about 294.0551672742.

The spelling of 25426492 in words is "twenty-five million, four hundred twenty-six thousand, four hundred ninety-two".