50765563517 has 8 divisors (see below), whose sum is σ = 52587767640. Its totient is φ = 48948137280.

The previous prime is 50765563463. The next prime is 50765563553. The reversal of 50765563517 is 71536556705.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40087647961 + 10677915556 = 200219^2 + 103334^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50765563517 - 2¹⁰ = 50765562493 is a prime.

It is a super-2 number, since 2×50765563517² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50765568517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172834 + ... + 1215347.

It is an arithmetic number, because the mean of its divisors is an integer number (6573470955).

Almost surely, 2^50765563517 is an apocalyptic number.

It is an amenable number.

50765563517 is a deficient number, since it is larger than the sum of its proper divisors (1822204123).

50765563517 is a wasteful number, since it uses less digits than its factorization.

50765563517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388943.

The product of its (nonzero) digits is 3307500, while the sum is 50.

The spelling of 50765563517 in words is "fifty billion, seven hundred sixty-five million, five hundred sixty-three thousand, five hundred seventeen".