50390403109 has 2 divisors, whose sum is σ = 50390403110. Its totient is φ = 50390403108.

The previous prime is 50390403097. The next prime is 50390403121. The reversal of 50390403109 is 90130409305.

It is a balanced prime because it is at equal distance from previous prime (50390403097) and next prime (50390403121).

It can be written as a sum of positive squares in only one way, i.e., 50390372484 + 30625 = 224478^2 + 175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50390403109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50390403169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25195201554 + 25195201555.

It is an arithmetic number, because the mean of its divisors is an integer number (25195201555).

Almost surely, 2^50390403109 is an apocalyptic number.

It is an amenable number.

50390403109 is a deficient number, since it is larger than the sum of its proper divisors (1).

50390403109 is an equidigital number, since it uses as much as digits as its factorization.

50390403109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 34.

The spelling of 50390403109 in words is "fifty billion, three hundred ninety million, four hundred three thousand, one hundred nine".