50055111121 has 2 divisors, whose sum is σ = 50055111122. Its totient is φ = 50055111120.

The previous prime is 50055111053. The next prime is 50055111167. The reversal of 50055111121 is 12111155005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30156059025 + 19899052096 = 173655^2 + 141064^2 .

It is a cyclic number.

It is not a de Polignac number, because 50055111121 - 2⁷ = 50055110993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50055111092 and 50055111101.

It is not a weakly prime, because it can be changed into another prime (50055111181) 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, 25027555560 + 25027555561.

It is an arithmetic number, because the mean of its divisors is an integer number (25027555561).

Almost surely, 2^50055111121 is an apocalyptic number.

It is an amenable number.

50055111121 is a deficient number, since it is larger than the sum of its proper divisors (1).

50055111121 is an equidigital number, since it uses as much as digits as its factorization.

50055111121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250, while the sum is 22.

Adding to 50055111121 its reverse (12111155005), we get a palindrome (62166266126).

The spelling of 50055111121 in words is "fifty billion, fifty-five million, one hundred eleven thousand, one hundred twenty-one".