50005091 has 2 divisors, whose sum is σ = 50005092. Its totient is φ = 50005090.

The previous prime is 50005079. The next prime is 50005121. The reversal of 50005091 is 19050005.

50005091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50005091 - 2⁶ = 50005027 is a prime.

It is not a weakly prime, because it can be changed into another prime (50605091) 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, 25002545 + 25002546.

It is an arithmetic number, because the mean of its divisors is an integer number (25002546).

Almost surely, 2^50005091 is an apocalyptic number.

50005091 is a deficient number, since it is larger than the sum of its proper divisors (1).

50005091 is an equidigital number, since it uses as much as digits as its factorization.

50005091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 50005091 is about 7071.4277907647. The cubic root of 50005091 is about 368.4156530426.

Adding to 50005091 its reverse (19050005), we get a palindrome (69055096).

The spelling of 50005091 in words is "fifty million, five thousand, ninety-one".