550330321397 has 2 divisors, whose sum is σ = 550330321398. Its totient is φ = 550330321396.

The previous prime is 550330321361. The next prime is 550330321423. The reversal of 550330321397 is 793123033055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 534523294321 + 15807027076 = 731111^2 + 125726^2 .

It is a cyclic number.

It is not a de Polignac number, because 550330321397 - 2²⁰ = 550329272821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550330321337) 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, 275165160698 + 275165160699.

It is an arithmetic number, because the mean of its divisors is an integer number (275165160699).

Almost surely, 2^550330321397 is an apocalyptic number.

It is an amenable number.

550330321397 is a deficient number, since it is larger than the sum of its proper divisors (1).

550330321397 is an equidigital number, since it uses as much as digits as its factorization.

550330321397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 255150, while the sum is 41.

The spelling of 550330321397 in words is "five hundred fifty billion, three hundred thirty million, three hundred twenty-one thousand, three hundred ninety-seven".