5519218139 has 2 divisors, whose sum is σ = 5519218140. Its totient is φ = 5519218138.

The previous prime is 5519218127. The next prime is 5519218141. The reversal of 5519218139 is 9318129155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5519218139 - 2²⁸ = 5250782683 is a prime.

Together with 5519218141, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5519218139.

It is not a weakly prime, because it can be changed into another prime (5519218169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2759609069 + 2759609070.

It is an arithmetic number, because the mean of its divisors is an integer number (2759609070).

Almost surely, 2^5519218139 is an apocalyptic number.

5519218139 is a deficient number, since it is larger than the sum of its proper divisors (1).

5519218139 is an equidigital number, since it uses as much as digits as its factorization.

5519218139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 44.

The square root of 5519218139 is about 74291.4405500391. The cubic root of 5519218139 is about 1767.2277390136.

The spelling of 5519218139 in words is "five billion, five hundred nineteen million, two hundred eighteen thousand, one hundred thirty-nine".