551022506201 has 2 divisors, whose sum is σ = 551022506202. Its totient is φ = 551022506200.

The previous prime is 551022506197. The next prime is 551022506213. The reversal of 551022506201 is 102605220155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450724249600 + 100298256601 = 671360^2 + 316699^2 .

It is a cyclic number.

It is not a de Polignac number, because 551022506201 - 2² = 551022506197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (551022506231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275511253100 + 275511253101.

It is an arithmetic number, because the mean of its divisors is an integer number (275511253101).

Almost surely, 2^551022506201 is an apocalyptic number.

It is an amenable number.

551022506201 is a deficient number, since it is larger than the sum of its proper divisors (1).

551022506201 is an equidigital number, since it uses as much as digits as its factorization.

551022506201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 551022506201 its reverse (102605220155), we get a palindrome (653627726356).

The spelling of 551022506201 in words is "five hundred fifty-one billion, twenty-two million, five hundred six thousand, two hundred one".