13225664 has 14 divisors (see below), whose sum is σ = 26244804. Its totient is φ = 6612800.

The previous prime is 13225631. The next prime is 13225699. The reversal of 13225664 is 46652231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103262 + ... + 103389.

Almost surely, 2^13225664 is an apocalyptic number.

It is an amenable number.

13225664 is a deficient number, since it is larger than the sum of its proper divisors (13019140).

13225664 is an equidigital number, since it uses as much as digits as its factorization.

13225664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206663 (or 206653 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 13225664 is about 3636.7106016289. The cubic root of 13225664 is about 236.4862139175.

Adding to 13225664 its reverse (46652231), we get a palindrome (59877895).

The spelling of 13225664 in words is "thirteen million, two hundred twenty-five thousand, six hundred sixty-four".