50386705517 has 4 divisors (see below), whose sum is σ = 51615649596. Its totient is φ = 49157761440.

The previous prime is 50386705513. The next prime is 50386705519. The reversal of 50386705517 is 71550768305.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4926495721 + 45460209796 = 70189^2 + 213214^2 .

It is a cyclic number.

It is not a de Polignac number, because 50386705517 - 2² = 50386705513 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50386705513) 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 in 3 ways as a sum of consecutive naturals, for example, 614471978 + ... + 614472059.

It is an arithmetic number, because the mean of its divisors is an integer number (12903912399).

Almost surely, 2^50386705517 is an apocalyptic number.

It is an amenable number.

50386705517 is a deficient number, since it is larger than the sum of its proper divisors (1228944079).

50386705517 is a wasteful number, since it uses less digits than its factorization.

50386705517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228944078.

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 50386705517 in words is "fifty billion, three hundred eighty-six million, seven hundred five thousand, five hundred seventeen".