25390668 has 24 divisors (see below), whose sum is σ = 59626672. Its totient is φ = 8409024.

The previous prime is 25390667. The next prime is 25390697. The reversal of 25390668 is 86609352.

It is not an unprimeable number, because it can be changed into a prime (25390661) 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, 4855 + ... + 8622.

Almost surely, 2^25390668 is an apocalyptic number.

It is an amenable number.

25390668 is an abundant number, since it is smaller than the sum of its proper divisors (34236004).

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

25390668 is a wasteful number, since it uses less digits than its factorization.

25390668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13641 (or 13639 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 25390668 is about 5038.9153594797. The cubic root of 25390668 is about 293.9170018848.

The spelling of 25390668 in words is "twenty-five million, three hundred ninety thousand, six hundred sixty-eight".