50550111061 has 2 divisors, whose sum is σ = 50550111062. Its totient is φ = 50550111060.

The previous prime is 50550110977. The next prime is 50550111077. The reversal of 50550111061 is 16011105505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49286664036 + 1263447025 = 222006^2 + 35545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50550111061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50550811061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25275055530 + 25275055531.

It is an arithmetic number, because the mean of its divisors is an integer number (25275055531).

Almost surely, 2^50550111061 is an apocalyptic number.

It is an amenable number.

50550111061 is a deficient number, since it is larger than the sum of its proper divisors (1).

50550111061 is an equidigital number, since it uses as much as digits as its factorization.

50550111061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 50550111061 its reverse (16011105505), we get a palindrome (66561216566).

The spelling of 50550111061 in words is "fifty billion, five hundred fifty million, one hundred eleven thousand, sixty-one".