50051191 has 2 divisors, whose sum is σ = 50051192. Its totient is φ = 50051190.

The previous prime is 50051173. The next prime is 50051207. The reversal of 50051191 is 19115005.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50051191 - 2⁵ = 50051159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50051101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25025595 + 25025596.

It is an arithmetic number, because the mean of its divisors is an integer number (25025596).

Almost surely, 2^50051191 is an apocalyptic number.

50051191 is a deficient number, since it is larger than the sum of its proper divisors (1).

50051191 is an equidigital number, since it uses as much as digits as its factorization.

50051191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225, while the sum is 22.

The square root of 50051191 is about 7074.6866361698. The cubic root of 50051191 is about 368.5288331524.

Adding to 50051191 its reverse (19115005), we get a palindrome (69166196).

The spelling of 50051191 in words is "fifty million, fifty-one thousand, one hundred ninety-one".