25481864 has 16 divisors (see below), whose sum is σ = 48589200. Its totient is φ = 12524752.

The previous prime is 25481821. The next prime is 25481873. The reversal of 25481864 is 46818452.

It is a happy 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, 26522 + ... + 27465.

It is an arithmetic number, because the mean of its divisors is an integer number (3036825).

Almost surely, 2^25481864 is an apocalyptic number.

It is an amenable number.

25481864 is a deficient number, since it is larger than the sum of its proper divisors (23107336).

25481864 is a wasteful number, since it uses less digits than its factorization.

25481864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54052 (or 54048 counting only the distinct ones).

The product of its digits is 61440, while the sum is 38.

The square root of 25481864 is about 5047.9564181954. The cubic root of 25481864 is about 294.2684699643.

The spelling of 25481864 in words is "twenty-five million, four hundred eighty-one thousand, eight hundred sixty-four".