25421292 has 36 divisors (see below), whose sum is σ = 69203680. Its totient is φ = 7821792.

The previous prime is 25421287. The next prime is 25421321. The reversal of 25421292 is 29212452.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26692 + ... + 27627.

Almost surely, 2^25421292 is an apocalyptic number.

It is an amenable number.

25421292 is an abundant number, since it is smaller than the sum of its proper divisors (43782388).

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

25421292 is a wasteful number, since it uses less digits than its factorization.

25421292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54342 (or 54337 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 25421292 is about 5041.9531929600. The cubic root of 25421292 is about 294.0351200583.

The spelling of 25421292 in words is "twenty-five million, four hundred twenty-one thousand, two hundred ninety-two".