500550605561 has 16 divisors (see below), whose sum is σ = 542247557760. Its totient is φ = 460632332160.

The previous prime is 500550605557. The next prime is 500550605567. The reversal of 500550605561 is 165506055005.

It is a cyclic number.

It is not a de Polignac number, because 500550605561 - 2² = 500550605557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500550605567) 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 15 ways as a sum of consecutive naturals, for example, 1147895 + ... + 1522748.

It is an arithmetic number, because the mean of its divisors is an integer number (33890472360).

Almost surely, 2^500550605561 is an apocalyptic number.

It is an amenable number.

500550605561 is a deficient number, since it is larger than the sum of its proper divisors (41696952199).

500550605561 is a wasteful number, since it uses less digits than its factorization.

500550605561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670976.

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 500550605561 in words is "five hundred billion, five hundred fifty million, six hundred five thousand, five hundred sixty-one".