13623321225 has 48 divisors (see below), whose sum is σ = 23512066560. Its totient is φ = 6952281600.

The previous prime is 13623321211. The next prime is 13623321259. The reversal of 13623321225 is 52212332631.

It is not a de Polignac number, because 13623321225 - 2⁴ = 13623321209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13623321192 and 13623321201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174007 + ... + 239843.

It is an arithmetic number, because the mean of its divisors is an integer number (489834720).

Almost surely, 2^13623321225 is an apocalyptic number.

13623321225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13623321225 is a deficient number, since it is larger than the sum of its proper divisors (9888745335).

13623321225 is a wasteful number, since it uses less digits than its factorization.

13623321225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65970 (or 65965 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

Adding to 13623321225 its reverse (52212332631), we get a palindrome (65835653856).

The spelling of 13623321225 in words is "thirteen billion, six hundred twenty-three million, three hundred twenty-one thousand, two hundred twenty-five".