25366648 has 32 divisors (see below), whose sum is σ = 50155200. Its totient is φ = 12009088.

The previous prime is 25366643. The next prime is 25366661. The reversal of 25366648 is 84666352.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25366648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25366643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11265 + ... + 13327.

It is an arithmetic number, because the mean of its divisors is an integer number (1567350).

Almost surely, 2^25366648 is an apocalyptic number.

It is an amenable number.

25366648 is a deficient number, since it is larger than the sum of its proper divisors (24788552).

25366648 is a wasteful number, since it uses less digits than its factorization.

25366648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151 (or 2147 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 25366648 is about 5036.5313460754. The cubic root of 25366648 is about 293.8242891631.

The spelling of 25366648 in words is "twenty-five million, three hundred sixty-six thousand, six hundred forty-eight".