13504825 has 12 divisors (see below), whose sum is σ = 16921660. Its totient is φ = 10690560.

The previous prime is 13504819. The next prime is 13504859. The reversal of 13504825 is 52840531.

It can be written as a sum of positive squares in 6 ways, for example, as 1505529 + 11999296 = 1227^2 + 3464^2 .

It is not a de Polignac number, because 13504825 - 2⁵ = 13504793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13504793 and 13504802.

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 11 ways as a sum of consecutive naturals, for example, 360 + ... + 5209.

Almost surely, 2^13504825 is an apocalyptic number.

It is an amenable number.

13504825 is a deficient number, since it is larger than the sum of its proper divisors (3416835).

13504825 is an equidigital number, since it uses as much as digits as its factorization.

13504825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676 (or 5671 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 13504825 is about 3674.8911548507. The cubic root of 13504825 is about 238.1385218610.

The spelling of 13504825 in words is "thirteen million, five hundred four thousand, eight hundred twenty-five".