50731163517 has 4 divisors (see below), whose sum is σ = 67641551360. Its totient is φ = 33820775676.

The previous prime is 50731163489. The next prime is 50731163531. The reversal of 50731163517 is 71536113705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 50731163517 - 2⁶ = 50731163453 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 (50731163537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8455193917 + ... + 8455193922.

It is an arithmetic number, because the mean of its divisors is an integer number (16910387840).

Almost surely, 2^50731163517 is an apocalyptic number.

It is an amenable number.

50731163517 is a deficient number, since it is larger than the sum of its proper divisors (16910387843).

50731163517 is a wasteful number, since it uses less digits than its factorization.

50731163517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16910387842.

The product of its (nonzero) digits is 66150, while the sum is 39.

The spelling of 50731163517 in words is "fifty billion, seven hundred thirty-one million, one hundred sixty-three thousand, five hundred seventeen".