50205191 has 2 divisors, whose sum is σ = 50205192. Its totient is φ = 50205190.

The previous prime is 50205161. The next prime is 50205203. The reversal of 50205191 is 19150205.

50205191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50205191 is a prime.

It is a super-2 number, since 2×50205191² = 5041122406692962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50205121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25102595 + 25102596.

It is an arithmetic number, because the mean of its divisors is an integer number (25102596).

Almost surely, 2^50205191 is an apocalyptic number.

50205191 is a deficient number, since it is larger than the sum of its proper divisors (1).

50205191 is an equidigital number, since it uses as much as digits as its factorization.

50205191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 50205191 is about 7085.5621513046. The cubic root of 50205191 is about 368.9064154583.

Adding to 50205191 its reverse (19150205), we get a palindrome (69355396).

The spelling of 50205191 in words is "fifty million, two hundred five thousand, one hundred ninety-one".