500273564881 has 4 divisors (see below), whose sum is σ = 500297553252. Its totient is φ = 500249576512.

The previous prime is 500273564873. The next prime is 500273564887. The reversal of 500273564881 is 188465372005.

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 172356995281 + 327916569600 = 415159^2 + 572640^2 .

It is a cyclic number.

It is not a de Polignac number, because 500273564881 - 2³ = 500273564873 is a prime.

It is a super-2 number, since 2×500273564881² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500273564887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11962876 + ... + 12004621.

It is an arithmetic number, because the mean of its divisors is an integer number (125074388313).

Almost surely, 2^500273564881 is an apocalyptic number.

It is an amenable number.

500273564881 is a deficient number, since it is larger than the sum of its proper divisors (23988371).

500273564881 is a wasteful number, since it uses less digits than its factorization.

500273564881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23988370.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 500273564881 in words is "five hundred billion, two hundred seventy-three million, five hundred sixty-four thousand, eight hundred eighty-one".