25881872 has 20 divisors (see below), whose sum is σ = 51313680. Its totient is φ = 12639648.

The previous prime is 25881851. The next prime is 25881881. The reversal of 25881872 is 27818852.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 18122 + ... + 19497.

It is an arithmetic number, because the mean of its divisors is an integer number (2565684).

Almost surely, 2^25881872 is an apocalyptic number.

It is an amenable number.

25881872 is a deficient number, since it is larger than the sum of its proper divisors (25431808).

25881872 is a wasteful number, since it uses less digits than its factorization.

25881872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37670 (or 37664 counting only the distinct ones).

The product of its digits is 71680, while the sum is 41.

The square root of 25881872 is about 5087.4229232491. The cubic root of 25881872 is about 295.8002670089.

The spelling of 25881872 in words is "twenty-five million, eight hundred eighty-one thousand, eight hundred seventy-two".