500568985081 has 9 divisors (see below), whose sum is σ = 550220744773. Its totient is φ = 455055638620.

The previous prime is 500568985079. The next prime is 500568985099. The reversal of 500568985081 is 180589865005.

The square root of 500568985081 is 707509.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 500568985081 - 2¹ = 500568985079 is a prime.

It is a super-2 number, since 2×500568985081² (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 (500568985031) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7750440 + ... + 7814758.

Almost surely, 2^500568985081 is an apocalyptic number.

500568985081 is the 707509-th square number.

500568985081 is the 353755-th centered octagonal number.

It is an amenable number.

500568985081 is a deficient number, since it is larger than the sum of its proper divisors (49651759692).

500568985081 is an frugal number, since it uses more digits than its factorization.

500568985081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128660 (or 64330 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 55.

The spelling of 500568985081 in words is "five hundred billion, five hundred sixty-eight million, nine hundred eighty-five thousand, eighty-one".