50423765165 has 4 divisors (see below), whose sum is σ = 60508518204. Its totient is φ = 40339012128.

The previous prime is 50423765111. The next prime is 50423765179. The reversal of 50423765165 is 56156732405.

It is a happy number.

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 39767538724 + 10656226441 = 199418^2 + 103229^2 .

It is a cyclic number.

It is not a de Polignac number, because 50423765165 - 2²⁴ = 50406987949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5042376512 + ... + 5042376521.

It is an arithmetic number, because the mean of its divisors is an integer number (15127129551).

Almost surely, 2^50423765165 is an apocalyptic number.

It is an amenable number.

50423765165 is a deficient number, since it is larger than the sum of its proper divisors (10084753039).

50423765165 is a wasteful number, since it uses less digits than its factorization.

50423765165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10084753038.

The product of its (nonzero) digits is 756000, while the sum is 44.

The spelling of 50423765165 in words is "fifty billion, four hundred twenty-three million, seven hundred sixty-five thousand, one hundred sixty-five".