550213315021 has 2 divisors, whose sum is σ = 550213315022. Its totient is φ = 550213315020.

The previous prime is 550213314997. The next prime is 550213315033. The reversal of 550213315021 is 120513312055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316164421225 + 234048893796 = 562285^2 + 483786^2 .

It is a cyclic number.

It is not a de Polignac number, because 550213315021 - 2¹¹ = 550213312973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550213313021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275106657510 + 275106657511.

It is an arithmetic number, because the mean of its divisors is an integer number (275106657511).

Almost surely, 2^550213315021 is an apocalyptic number.

It is an amenable number.

550213315021 is a deficient number, since it is larger than the sum of its proper divisors (1).

550213315021 is an equidigital number, since it uses as much as digits as its factorization.

550213315021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 550213315021 its reverse (120513312055), we get a palindrome (670726627076).

The spelling of 550213315021 in words is "five hundred fifty billion, two hundred thirteen million, three hundred fifteen thousand, twenty-one".