50505109 has 2 divisors, whose sum is σ = 50505110. Its totient is φ = 50505108.

The previous prime is 50505089. The next prime is 50505127. The reversal of 50505109 is 90150505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48344209 + 2160900 = 6953^2 + 1470^2 .

It is a cyclic number.

It is not a de Polignac number, because 50505109 - 2⁷ = 50504981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50505139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25252554 + 25252555.

It is an arithmetic number, because the mean of its divisors is an integer number (25252555).

Almost surely, 2^50505109 is an apocalyptic number.

It is an amenable number.

50505109 is a deficient number, since it is larger than the sum of its proper divisors (1).

50505109 is an equidigital number, since it uses as much as digits as its factorization.

50505109 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.

The square root of 50505109 is about 7106.6946606703. The cubic root of 50505109 is about 369.6395540155.

The spelling of 50505109 in words is "fifty million, five hundred five thousand, one hundred nine".