550020607121 has 2 divisors, whose sum is σ = 550020607122. Its totient is φ = 550020607120.

The previous prime is 550020607039. The next prime is 550020607219. The reversal of 550020607121 is 121706020055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307759767121 + 242260840000 = 554761^2 + 492200^2 .

It is a cyclic number.

It is not a de Polignac number, because 550020607121 - 2¹⁰ = 550020606097 is a prime.

It is not a weakly prime, because it can be changed into another prime (550020607021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275010303560 + 275010303561.

It is an arithmetic number, because the mean of its divisors is an integer number (275010303561).

Almost surely, 2^550020607121 is an apocalyptic number.

It is an amenable number.

550020607121 is a deficient number, since it is larger than the sum of its proper divisors (1).

550020607121 is an equidigital number, since it uses as much as digits as its factorization.

550020607121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

Adding to 550020607121 its reverse (121706020055), we get a palindrome (671726627176).

The spelling of 550020607121 in words is "five hundred fifty billion, twenty million, six hundred seven thousand, one hundred twenty-one".