13381825 has 6 divisors (see below), whose sum is σ = 16593494. Its totient is φ = 10705440.

The previous prime is 13381817. The next prime is 13381853. The reversal of 13381825 is 52818331.

It can be written as a sum of positive squares in 3 ways, for example, as 2961841 + 10419984 = 1721^2 + 3228^2 .

It is not a de Polignac number, because 13381825 - 2³ = 13381817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267612 + ... + 267661.

Almost surely, 2^13381825 is an apocalyptic number.

It is an amenable number.

13381825 is a deficient number, since it is larger than the sum of its proper divisors (3211669).

13381825 is an equidigital number, since it uses as much as digits as its factorization.

13381825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535283 (or 535278 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 13381825 is about 3658.1176853677. The cubic root of 13381825 is about 237.4133386498.

The spelling of 13381825 in words is "thirteen million, three hundred eighty-one thousand, eight hundred twenty-five".