25387668 has 36 divisors (see below), whose sum is σ = 66553760. Its totient is φ = 8462232.

The previous prime is 25387657. The next prime is 25387693. The reversal of 25387668 is 86678352.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12088 + ... + 14031.

Almost surely, 2^25387668 is an apocalyptic number.

It is an amenable number.

25387668 is an abundant number, since it is smaller than the sum of its proper divisors (41166092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25387668 is a wasteful number, since it uses less digits than its factorization.

25387668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26138 (or 26124 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 25387668 is about 5038.6176675751. The cubic root of 25387668 is about 293.9054256404.

The spelling of 25387668 in words is "twenty-five million, three hundred eighty-seven thousand, six hundred sixty-eight".