5517819449 has 2 divisors, whose sum is σ = 5517819450. Its totient is φ = 5517819448.

The previous prime is 5517819403. The next prime is 5517819451. The reversal of 5517819449 is 9449187155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5500447225 + 17372224 = 74165^2 + 4168^2 .

It is a cyclic number.

It is not a de Polignac number, because 5517819449 - 2⁸ = 5517819193 is a prime.

Together with 5517819451, 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 5517819449.

It is not a weakly prime, because it can be changed into another prime (5517819049) 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, 2758909724 + 2758909725.

It is an arithmetic number, because the mean of its divisors is an integer number (2758909725).

Almost surely, 2^5517819449 is an apocalyptic number.

It is an amenable number.

5517819449 is a deficient number, since it is larger than the sum of its proper divisors (1).

5517819449 is an equidigital number, since it uses as much as digits as its factorization.

5517819449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 53.

The square root of 5517819449 is about 74282.0264195855. The cubic root of 5517819449 is about 1767.0784417439.

The spelling of 5517819449 in words is "five billion, five hundred seventeen million, eight hundred nineteen thousand, four hundred forty-nine".