12250424545 has 4 divisors (see below), whose sum is σ = 14700509460. Its totient is φ = 9800339632.

The previous prime is 12250424479. The next prime is 12250424579. The reversal of 12250424545 is 54542405221.

12250424545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3983250769 + 8267173776 = 63113^2 + 90924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12250424545 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12250424545.

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 3 ways as a sum of consecutive naturals, for example, 1225042450 + ... + 1225042459.

It is an arithmetic number, because the mean of its divisors is an integer number (3675127365).

Almost surely, 2^12250424545 is an apocalyptic number.

It is an amenable number.

12250424545 is a deficient number, since it is larger than the sum of its proper divisors (2450084915).

12250424545 is an equidigital number, since it uses as much as digits as its factorization.

12250424545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450084914.

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 12250424545 its reverse (54542405221), we get a palindrome (66792829766).

The spelling of 12250424545 in words is "twelve billion, two hundred fifty million, four hundred twenty-four thousand, five hundred forty-five".