12550621427 has 2 divisors, whose sum is σ = 12550621428. Its totient is φ = 12550621426.

The previous prime is 12550621411. The next prime is 12550621451. The reversal of 12550621427 is 72412605521.

12550621427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (72412605521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12550621427 - 2⁴ = 12550621411 is a prime.

It is not a weakly prime, because it can be changed into another prime (12550621327) 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 as a sum of consecutive naturals, namely, 6275310713 + 6275310714.

It is an arithmetic number, because the mean of its divisors is an integer number (6275310714).

Almost surely, 2^12550621427 is an apocalyptic number.

12550621427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12550621427 is an equidigital number, since it uses as much as digits as its factorization.

12550621427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 12550621427 in words is "twelve billion, five hundred fifty million, six hundred twenty-one thousand, four hundred twenty-seven".