25907668 has 6 divisors (see below), whose sum is σ = 45338426. Its totient is φ = 12953832.

The previous prime is 25907657. The next prime is 25907671. The reversal of 25907668 is 86670952.

It can be written as a sum of positive squares in only one way, i.e., 21696964 + 4210704 = 4658^2 + 2052^2 .

It is a super-2 number, since 2×25907668² = 1342414522396448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3238455 + ... + 3238462.

Almost surely, 2^25907668 is an apocalyptic number.

It is an amenable number.

25907668 is a deficient number, since it is larger than the sum of its proper divisors (19430758).

25907668 is a wasteful number, since it uses less digits than its factorization.

25907668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476921 (or 6476919 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 25907668 is about 5089.9575636738. The cubic root of 25907668 is about 295.8985073273.

The spelling of 25907668 in words is "twenty-five million, nine hundred seven thousand, six hundred sixty-eight".