551022498209 has 2 divisors, whose sum is σ = 551022498210. Its totient is φ = 551022498208.

The previous prime is 551022498203. The next prime is 551022498217. The reversal of 551022498209 is 902894220155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 447698824609 + 103323673600 = 669103^2 + 321440^2 .

It is a cyclic number.

It is not a de Polignac number, because 551022498209 - 2³² = 546727530913 is a prime.

It is not a weakly prime, because it can be changed into another prime (551022498203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275511249104 + 275511249105.

It is an arithmetic number, because the mean of its divisors is an integer number (275511249105).

Almost surely, 2^551022498209 is an apocalyptic number.

It is an amenable number.

551022498209 is a deficient number, since it is larger than the sum of its proper divisors (1).

551022498209 is an equidigital number, since it uses as much as digits as its factorization.

551022498209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 551022498209 in words is "five hundred fifty-one billion, twenty-two million, four hundred ninety-eight thousand, two hundred nine".