500221036505 has 4 divisors (see below), whose sum is σ = 600265243812. Its totient is φ = 400176829200.

The previous prime is 500221036499. The next prime is 500221036507. The reversal of 500221036505 is 505630122005.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505630122005 = 5 ⋅101126024401.

It can be written as a sum of positive squares in 2 ways, for example, as 344208676249 + 156012360256 = 586693^2 + 394984^2 .

It is a de Polignac number, because none of the positive numbers 2^k-500221036505 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500221036507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50022103646 + ... + 50022103655.

It is an arithmetic number, because the mean of its divisors is an integer number (150066310953).

Almost surely, 2^500221036505 is an apocalyptic number.

It is an amenable number.

500221036505 is a deficient number, since it is larger than the sum of its proper divisors (100044207307).

500221036505 is a wasteful number, since it uses less digits than its factorization.

500221036505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100044207306.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 500221036505 in words is "five hundred billion, two hundred twenty-one million, thirty-six thousand, five hundred five".