25668746 has 16 divisors (see below), whose sum is σ = 39378528. Its totient is φ = 12546000.

The previous prime is 25668743. The next prime is 25668763. The reversal of 25668746 is 64786652.

It is a junction number, because it is equal to n+sod(n) for n = 25668697 and 25668706.

It is not an unprimeable number, because it can be changed into a prime (25668743) 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, 16001 + ... + 17531.

It is an arithmetic number, because the mean of its divisors is an integer number (2461158).

Almost surely, 2^25668746 is an apocalyptic number.

25668746 is a deficient number, since it is larger than the sum of its proper divisors (13709782).

25668746 is a wasteful number, since it uses less digits than its factorization.

25668746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717.

The product of its digits is 483840, while the sum is 44.

The square root of 25668746 is about 5066.4332621678. The cubic root of 25668746 is about 294.9860991247.

The spelling of 25668746 in words is "twenty-five million, six hundred sixty-eight thousand, seven hundred forty-six".