13325664 has 48 divisors (see below), whose sum is σ = 38162880. Its totient is φ = 4037760.

The previous prime is 13325623. The next prime is 13325677. The reversal of 13325664 is 46652331.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 5254 + ... + 7365.

It is an arithmetic number, because the mean of its divisors is an integer number (795060).

Almost surely, 2^13325664 is an apocalyptic number.

It is an amenable number.

13325664 is an abundant number, since it is smaller than the sum of its proper divisors (24837216).

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

13325664 is a wasteful number, since it uses less digits than its factorization.

13325664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12643 (or 12635 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 13325664 is about 3650.4333989268. The cubic root of 13325664 is about 237.0807465788.

Adding to 13325664 its reverse (46652331), we get a palindrome (59977995).

It can be divided in two parts, 1332 and 5664, that added together give a palindrome (6996).

The spelling of 13325664 in words is "thirteen million, three hundred twenty-five thousand, six hundred sixty-four".