13212825 has 48 divisors (see below), whose sum is σ = 23766336. Its totient is φ = 6451200.

The previous prime is 13212821. The next prime is 13212827. The reversal of 13212825 is 52821231.

13212825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13212825 - 2² = 13212821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13212795 and 13212804.

It is not an unprimeable number, because it can be changed into a prime (13212821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54705 + ... + 54945.

It is an arithmetic number, because the mean of its divisors is an integer number (495132).

Almost surely, 2^13212825 is an apocalyptic number.

13212825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13212825 is a deficient number, since it is larger than the sum of its proper divisors (10553511).

13212825 is a wasteful number, since it uses less digits than its factorization.

13212825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 309 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 13212825 is about 3634.9449789509. The cubic root of 13212825 is about 236.4096650318.

The spelling of 13212825 in words is "thirteen million, two hundred twelve thousand, eight hundred twenty-five".