12511353225 has 96 divisors (see below), whose sum is σ = 24941102080. Its totient is φ = 5406186240.

The previous prime is 12511353221. The next prime is 12511353233. The reversal of 12511353225 is 52235311521.

12511353225 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 12511353225 - 2² = 12511353221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12511353192 and 12511353201.

It is not an unprimeable number, because it can be changed into a prime (12511353221) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 5455179 + ... + 5457471.

Almost surely, 2^12511353225 is an apocalyptic number.

12511353225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12511353225 is a deficient number, since it is larger than the sum of its proper divisors (12429748855).

12511353225 is a wasteful number, since it uses less digits than its factorization.

12511353225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879 (or 2874 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

Adding to 12511353225 its reverse (52235311521), we get a palindrome (64746664746).

The spelling of 12511353225 in words is "twelve billion, five hundred eleven million, three hundred fifty-three thousand, two hundred twenty-five".