13211825 has 24 divisors (see below), whose sum is σ = 18079200. Its totient is φ = 9497600.

The previous prime is 13211819. The next prime is 13211827. The reversal of 13211825 is 52811231.

It is a happy number.

It is not a de Polignac number, because 13211825 - 2¹⁰ = 13210801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13211825.

It is not an unprimeable number, because it can be changed into a prime (13211827) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 29201 + ... + 29649.

It is an arithmetic number, because the mean of its divisors is an integer number (753300).

Almost surely, 2^13211825 is an apocalyptic number.

It is an amenable number.

13211825 is a deficient number, since it is larger than the sum of its proper divisors (4867375).

13211825 is a wasteful number, since it uses less digits than its factorization.

13211825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 572 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 13211825 is about 3634.8074226842. The cubic root of 13211825 is about 236.4037007350.

The spelling of 13211825 in words is "thirteen million, two hundred eleven thousand, eight hundred twenty-five".