5518381073 has 2 divisors, whose sum is σ = 5518381074. Its totient is φ = 5518381072.

The previous prime is 5518381039. The next prime is 5518381079. The reversal of 5518381073 is 3701838155.

5518381073 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3186263809 + 2332117264 = 56447^2 + 48292^2 .

It is a cyclic number.

It is not a de Polignac number, because 5518381073 - 2⁸ = 5518380817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5518381073.

It is not a weakly prime, because it can be changed into another prime (5518381079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2759190536 + 2759190537.

It is an arithmetic number, because the mean of its divisors is an integer number (2759190537).

Almost surely, 2^5518381073 is an apocalyptic number.

It is an amenable number.

5518381073 is a deficient number, since it is larger than the sum of its proper divisors (1).

5518381073 is an equidigital number, since it uses as much as digits as its factorization.

5518381073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 5518381073 is about 74285.8066726074. The cubic root of 5518381073 is about 1767.1383929621.

The spelling of 5518381073 in words is "five billion, five hundred eighteen million, three hundred eighty-one thousand, seventy-three".