13825443 has 8 divisors (see below), whose sum is σ = 18473728. Its totient is φ = 9197064.

The previous prime is 13825391. The next prime is 13825453. The reversal of 13825443 is 34452831.

13825443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13825443 - 2¹⁷ = 13694371 is a prime.

It is a super-2 number, since 2×13825443² = 382285748292498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13825443.

It is not an unprimeable number, because it can be changed into a prime (13825453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3271 + ... + 6192.

It is an arithmetic number, because the mean of its divisors is an integer number (2309216).

Almost surely, 2^13825443 is an apocalyptic number.

13825443 is a deficient number, since it is larger than the sum of its proper divisors (4648285).

13825443 is an equidigital number, since it uses as much as digits as its factorization.

13825443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9953.

The product of its digits is 11520, while the sum is 30.

The square root of 13825443 is about 3718.2580598985. The cubic root of 13825443 is about 240.0083504039.

The spelling of 13825443 in words is "thirteen million, eight hundred twenty-five thousand, four hundred forty-three".