50111993 has 2 divisors, whose sum is σ = 50111994. Its totient is φ = 50111992.

The previous prime is 50111989. The next prime is 50112017. The reversal of 50111993 is 39911105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47513449 + 2598544 = 6893^2 + 1612^2 .

It is a cyclic number.

It is not a de Polignac number, because 50111993 - 2² = 50111989 is a prime.

It is a super-2 number, since 2×50111993² = 5022423684864098, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (50111923) 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, 25055996 + 25055997.

It is an arithmetic number, because the mean of its divisors is an integer number (25055997).

Almost surely, 2^50111993 is an apocalyptic number.

It is an amenable number.

50111993 is a deficient number, since it is larger than the sum of its proper divisors (1).

50111993 is an equidigital number, since it uses as much as digits as its factorization.

50111993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215, while the sum is 29.

The square root of 50111993 is about 7078.9824833799. The cubic root of 50111993 is about 368.6780019158.

The spelling of 50111993 in words is "fifty million, one hundred eleven thousand, nine hundred ninety-three".