25518468 has 12 divisors (see below), whose sum is σ = 59543120. Its totient is φ = 8506152.

The previous prime is 25518461. The next prime is 25518473. The reversal of 25518468 is 86481552.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (25518461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063258 + ... + 1063281.

Almost surely, 2^25518468 is an apocalyptic number.

It is an amenable number.

25518468 is an abundant number, since it is smaller than the sum of its proper divisors (34024652).

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

25518468 is a wasteful number, since it uses less digits than its factorization.

25518468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126546 (or 2126544 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 25518468 is about 5051.5807426983. The cubic root of 25518468 is about 294.4093054173.

The spelling of 25518468 in words is "twenty-five million, five hundred eighteen thousand, four hundred sixty-eight".