550005555569 has 2 divisors, whose sum is σ = 550005555570. Its totient is φ = 550005555568.

The previous prime is 550005555557. The next prime is 550005555641. The reversal of 550005555569 is 965555500055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422636511025 + 127369044544 = 650105^2 + 356888^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550005555569 is a prime.

It is a super-2 number, since 2×550005555569² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (550005755569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275002777784 + 275002777785.

It is an arithmetic number, because the mean of its divisors is an integer number (275002777785).

Almost surely, 2^550005555569 is an apocalyptic number.

It is an amenable number.

550005555569 is a deficient number, since it is larger than the sum of its proper divisors (1).

550005555569 is an equidigital number, since it uses as much as digits as its factorization.

550005555569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4218750, while the sum is 50.

The spelling of 550005555569 in words is "five hundred fifty billion, five million, five hundred fifty-five thousand, five hundred sixty-nine".