25306768 has 10 divisors (see below), whose sum is σ = 49031894. Its totient is φ = 12653376.

The previous prime is 25306759. The next prime is 25306769. The reversal of 25306768 is 86760352.

It can be written as a sum of positive squares in only one way, i.e., 25120144 + 186624 = 5012^2 + 432^2 .

It is not an unprimeable number, because it can be changed into a prime (25306769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 790821 + ... + 790852.

Almost surely, 2^25306768 is an apocalyptic number.

It is an amenable number.

25306768 is a deficient number, since it is larger than the sum of its proper divisors (23725126).

25306768 is a wasteful number, since it uses less digits than its factorization.

25306768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581681 (or 1581675 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 25306768 is about 5030.5832663817. The cubic root of 25306768 is about 293.5929084305.

The spelling of 25306768 in words is "twenty-five million, three hundred six thousand, seven hundred sixty-eight".