25918992 has 60 divisors (see below), whose sum is σ = 79136304. Its totient is φ = 7853760.

The previous prime is 25918987. The next prime is 25918993. The reversal of 25918992 is 29981952.

It is not an unprimeable number, because it can be changed into a prime (25918993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6598 + ... + 9765.

Almost surely, 2^25918992 is an apocalyptic number.

25918992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25918992 is an abundant number, since it is smaller than the sum of its proper divisors (53217312).

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

25918992 is a wasteful number, since it uses less digits than its factorization.

25918992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16388 (or 16379 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 25918992 is about 5091.0698286313. The cubic root of 25918992 is about 295.9416125400.

The spelling of 25918992 in words is "twenty-five million, nine hundred eighteen thousand, nine hundred ninety-two".