25781468 has 12 divisors (see below), whose sum is σ = 45153192. Its totient is φ = 12880560.

The previous prime is 25781453. The next prime is 25781471. The reversal of 25781468 is 86418752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8171 + ... + 10877.

It is an arithmetic number, because the mean of its divisors is an integer number (3762766).

Almost surely, 2^25781468 is an apocalyptic number.

It is an amenable number.

25781468 is a deficient number, since it is larger than the sum of its proper divisors (19371724).

25781468 is a wasteful number, since it uses less digits than its factorization.

25781468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092 (or 5090 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 25781468 is about 5077.5454700081. The cubic root of 25781468 is about 295.4172702711.

The spelling of 25781468 in words is "twenty-five million, seven hundred eighty-one thousand, four hundred sixty-eight".