13213625 has 16 divisors (see below), whose sum is σ = 16942224. Its totient is φ = 10281600.

The previous prime is 13213579. The next prime is 13213667. The reversal of 13213625 is 52631231.

It can be written as a sum of positive squares in 8 ways, for example, as 1075369 + 12138256 = 1037^2 + 3484^2 .

It is not a de Polignac number, because 13213625 - 2¹⁴ = 13197241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13213625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3197 + ... + 6053.

It is an arithmetic number, because the mean of its divisors is an integer number (1058889).

Almost surely, 2^13213625 is an apocalyptic number.

It is an amenable number.

13213625 is a deficient number, since it is larger than the sum of its proper divisors (3728599).

13213625 is an equidigital number, since it uses as much as digits as its factorization.

13213625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909 (or 2899 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 13213625 is about 3635.0550202163. The cubic root of 13213625 is about 236.4144362526.

Adding to 13213625 its reverse (52631231), we get a palindrome (65844856).

The spelling of 13213625 in words is "thirteen million, two hundred thirteen thousand, six hundred twenty-five".