25991468 has 12 divisors (see below), whose sum is σ = 47879160. Its totient is φ = 12311712.

The previous prime is 25991461. The next prime is 25991509. The reversal of 25991468 is 86419952.

It is not an unprimeable number, because it can be changed into a prime (25991461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170921 + ... + 171072.

It is an arithmetic number, because the mean of its divisors is an integer number (3989930).

Almost surely, 2^25991468 is an apocalyptic number.

It is an amenable number.

25991468 is a deficient number, since it is larger than the sum of its proper divisors (21887692).

25991468 is a wasteful number, since it uses less digits than its factorization.

25991468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342016 (or 342014 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 25991468 is about 5098.1828135131. The cubic root of 25991468 is about 296.2171981462.

The spelling of 25991468 in words is "twenty-five million, nine hundred ninety-one thousand, four hundred sixty-eight".