25530992 has 30 divisors (see below), whose sum is σ = 50702112. Its totient is φ = 12454176.

The previous prime is 25530977. The next prime is 25530997. The reversal of 25530992 is 29903552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25530997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29153 + ... + 30015.

Almost surely, 2^25530992 is an apocalyptic number.

It is an amenable number.

25530992 is a deficient number, since it is larger than the sum of its proper divisors (25171120).

25530992 is an equidigital number, since it uses as much as digits as its factorization.

25530992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 25530992 is about 5052.8202026195. The cubic root of 25530992 is about 294.4574611178.

The spelling of 25530992 in words is "twenty-five million, five hundred thirty thousand, nine hundred ninety-two".