25641772 has 12 divisors (see below), whose sum is σ = 48324976. Its totient is φ = 11834640.

The previous prime is 25641751. The next prime is 25641793. The reversal of 25641772 is 27714652.

It is an interprime number because it is at equal distance from previous prime (25641751) and next prime (25641793).

It is an unprimeable number.

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, 246504 + ... + 246607.

Almost surely, 2^25641772 is an apocalyptic number.

It is an amenable number.

25641772 is a deficient number, since it is larger than the sum of its proper divisors (22683204).

25641772 is a wasteful number, since it uses less digits than its factorization.

25641772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493128 (or 493126 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 25641772 is about 5063.7705319258. The cubic root of 25641772 is about 294.8827342018.

The spelling of 25641772 in words is "twenty-five million, six hundred forty-one thousand, seven hundred seventy-two".