50500050091 has 2 divisors, whose sum is σ = 50500050092. Its totient is φ = 50500050090.

The previous prime is 50500050089. The next prime is 50500050101. The reversal of 50500050091 is 19005000505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50500050091 - 2¹ = 50500050089 is a prime.

Together with 50500050089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50500050031) 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, 25250025045 + 25250025046.

It is an arithmetic number, because the mean of its divisors is an integer number (25250025046).

Almost surely, 2^50500050091 is an apocalyptic number.

50500050091 is a deficient number, since it is larger than the sum of its proper divisors (1).

50500050091 is an equidigital number, since it uses as much as digits as its factorization.

50500050091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1125, while the sum is 25.

Adding to 50500050091 its reverse (19005000505), we get a palindrome (69505050596).

The spelling of 50500050091 in words is "fifty billion, five hundred million, fifty thousand, ninety-one".