13025666 has 16 divisors (see below), whose sum is σ = 20018880. Its totient is φ = 6354480.

The previous prime is 13025647. The next prime is 13025681. The reversal of 13025666 is 66652031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19376 + ... + 20036.

It is an arithmetic number, because the mean of its divisors is an integer number (1251180).

Almost surely, 2^13025666 is an apocalyptic number.

13025666 is a deficient number, since it is larger than the sum of its proper divisors (6993214).

13025666 is a wasteful number, since it uses less digits than its factorization.

13025666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 13025666 is about 3609.1087542494. The cubic root of 13025666 is about 235.2881089863.

Adding to 13025666 its reverse (66652031), we get a palindrome (79677697).

The spelling of 13025666 in words is "thirteen million, twenty-five thousand, six hundred sixty-six".