13315625 has 12 divisors (see below), whose sum is σ = 16647372. Its totient is φ = 10650000.

The previous prime is 13315619. The next prime is 13315639. The reversal of 13315625 is 52651331.

13315625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 7376656 + 5938969 = 2716^2 + 2437^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13315625 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13315594 and 13315603.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 995 + ... + 5255.

It is an arithmetic number, because the mean of its divisors is an integer number (1387281).

Almost surely, 2^13315625 is an apocalyptic number.

It is an amenable number.

13315625 is a deficient number, since it is larger than the sum of its proper divisors (3331747).

13315625 is an frugal number, since it uses more digits than its factorization.

13315625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286 (or 4266 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 13315625 is about 3649.0580976466. The cubic root of 13315625 is about 237.0211960367.

Adding to 13315625 its reverse (52651331), we get a palindrome (65966956).

The spelling of 13315625 in words is "thirteen million, three hundred fifteen thousand, six hundred twenty-five".