13355231225 has 12 divisors (see below), whose sum is σ = 18926270784. Its totient is φ = 9157872720.

The previous prime is 13355231191. The next prime is 13355231243. The reversal of 13355231225 is 52213255331.

13355231225 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 13355231225 - 2¹⁰ = 13355230201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13355231191 and 13355231200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38157629 + ... + 38157978.

It is an arithmetic number, because the mean of its divisors is an integer number (1577189232).

Almost surely, 2^13355231225 is an apocalyptic number.

It is an amenable number.

13355231225 is a deficient number, since it is larger than the sum of its proper divisors (5571039559).

13355231225 is an equidigital number, since it uses as much as digits as its factorization.

13355231225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76315624 (or 76315619 counting only the distinct ones).

The product of its digits is 27000, while the sum is 32.

Adding to 13355231225 its reverse (52213255331), we get a palindrome (65568486556).

The spelling of 13355231225 in words is "thirteen billion, three hundred fifty-five million, two hundred thirty-one thousand, two hundred twenty-five".