25568764 has 12 divisors (see below), whose sum is σ = 48187384. Its totient is φ = 11800944.

The previous prime is 25568759. The next prime is 25568773. The reversal of 25568764 is 46786552.

It is a self number, because there is not a number n which added to its sum of digits gives 25568764.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245802 + ... + 245905.

Almost surely, 2^25568764 is an apocalyptic number.

It is an amenable number.

25568764 is a deficient number, since it is larger than the sum of its proper divisors (22618620).

25568764 is a wasteful number, since it uses less digits than its factorization.

25568764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491724 (or 491722 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 25568764 is about 5056.5565358255. The cubic root of 25568764 is about 294.6026019302.

The spelling of 25568764 in words is "twenty-five million, five hundred sixty-eight thousand, seven hundred sixty-four".