25445668 has 24 divisors (see below), whose sum is σ = 48674304. Its totient is φ = 11587200.

The previous prime is 25445653. The next prime is 25445669. The reversal of 25445668 is 86654452.

It is a self number, because there is not a number n which added to its sum of digits gives 25445668.

It is not an unprimeable number, because it can be changed into a prime (25445669) 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, 3928 + ... + 8143.

It is an arithmetic number, because the mean of its divisors is an integer number (2028096).

Almost surely, 2^25445668 is an apocalyptic number.

It is an amenable number.

25445668 is a deficient number, since it is larger than the sum of its proper divisors (23228636).

25445668 is a wasteful number, since it uses less digits than its factorization.

25445668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12123 (or 12121 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The square root of 25445668 is about 5044.3699309230. The cubic root of 25445668 is about 294.1290716221.

The spelling of 25445668 in words is "twenty-five million, four hundred forty-five thousand, six hundred sixty-eight".