50135540309 has 2 divisors, whose sum is σ = 50135540310. Its totient is φ = 50135540308.

The previous prime is 50135540267. The next prime is 50135540363. The reversal of 50135540309 is 90304553105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31230665284 + 18904875025 = 176722^2 + 137495^2 .

It is a cyclic number.

It is not a de Polignac number, because 50135540309 - 2³² = 45840573013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50135546309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25067770154 + 25067770155.

It is an arithmetic number, because the mean of its divisors is an integer number (25067770155).

Almost surely, 2^50135540309 is an apocalyptic number.

It is an amenable number.

50135540309 is a deficient number, since it is larger than the sum of its proper divisors (1).

50135540309 is an equidigital number, since it uses as much as digits as its factorization.

50135540309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 35.

The spelling of 50135540309 in words is "fifty billion, one hundred thirty-five million, five hundred forty thousand, three hundred nine".