50720547317 has 12 divisors (see below), whose sum is σ = 55841124108. Its totient is φ = 46034788800.

The previous prime is 50720547289. The next prime is 50720547341. The reversal of 50720547317 is 71374502705.

It can be written as a sum of positive squares in 2 ways, for example, as 7639808836 + 43080738481 = 87406^2 + 207559^2 .

It is not a de Polignac number, because 50720547317 - 2¹⁶ = 50720481781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50720507317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265034 + ... + 414347.

It is an arithmetic number, because the mean of its divisors is an integer number (4653427009).

Almost surely, 2^50720547317 is an apocalyptic number.

It is an amenable number.

50720547317 is a deficient number, since it is larger than the sum of its proper divisors (5120576791).

50720547317 is a wasteful number, since it uses less digits than its factorization.

50720547317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680020 (or 680009 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 41.

The spelling of 50720547317 in words is "fifty billion, seven hundred twenty million, five hundred forty-seven thousand, three hundred seventeen".