25388768 has 12 divisors (see below), whose sum is σ = 49984200. Its totient is φ = 12694368.

The previous prime is 25388761. The next prime is 25388777. The reversal of 25388768 is 86788352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25388761) 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 as a sum of consecutive naturals, namely, 396668 + ... + 396731.

It is an arithmetic number, because the mean of its divisors is an integer number (4165350).

Almost surely, 2^25388768 is an apocalyptic number.

It is an amenable number.

25388768 is a deficient number, since it is larger than the sum of its proper divisors (24595432).

25388768 is an equidigital number, since it uses as much as digits as its factorization.

25388768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793409 (or 793401 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 25388768 is about 5038.7268233156. The cubic root of 25388768 is about 293.9096703692.

The spelling of 25388768 in words is "twenty-five million, three hundred eighty-eight thousand, seven hundred sixty-eight".