13443625 has 16 divisors (see below), whose sum is σ = 18070416. Its totient is φ = 9926400.

The previous prime is 13443623. The next prime is 13443629. The reversal of 13443625 is 52634431.

It can be written as a sum of positive squares in 8 ways, for example, as 5103081 + 8340544 = 2259^2 + 2888^2 .

It is not a de Polignac number, because 13443625 - 2¹ = 13443623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13443593 and 13443602.

It is not an unprimeable number, because it can be changed into a prime (13443623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2512 + ... + 5761.

It is an arithmetic number, because the mean of its divisors is an integer number (1129401).

Almost surely, 2^13443625 is an apocalyptic number.

It is an amenable number.

13443625 is a deficient number, since it is larger than the sum of its proper divisors (4626791).

13443625 is an equidigital number, since it uses as much as digits as its factorization.

13443625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8301 (or 8291 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 13443625 is about 3666.5549225397. The cubic root of 13443625 is about 237.7782519004.

The spelling of 13443625 in words is "thirteen million, four hundred forty-three thousand, six hundred twenty-five".