5518243219 has 2 divisors, whose sum is σ = 5518243220. Its totient is φ = 5518243218.

The previous prime is 5518243193. The next prime is 5518243223. The reversal of 5518243219 is 9123428155.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5518243219 - 2⁵ = 5518243187 is a prime.

It is a super-2 number, since 2×5518243219² = 60902016448078963922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5518243519) 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, 2759121609 + 2759121610.

It is an arithmetic number, because the mean of its divisors is an integer number (2759121610).

Almost surely, 2^5518243219 is an apocalyptic number.

5518243219 is a deficient number, since it is larger than the sum of its proper divisors (1).

5518243219 is an equidigital number, since it uses as much as digits as its factorization.

5518243219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The square root of 5518243219 is about 74284.8788045050. The cubic root of 5518243219 is about 1767.1236779505.

The spelling of 5518243219 in words is "five billion, five hundred eighteen million, two hundred forty-three thousand, two hundred nineteen".