5518000129 has 4 divisors (see below), whose sum is σ = 5652585540. Its totient is φ = 5383414720.

The previous prime is 5518000099. The next prime is 5518000133. The reversal of 5518000129 is 9210008155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2685312400 + 2832687729 = 51820^2 + 53223^2 .

It is a cyclic number.

It is not a de Polignac number, because 5518000129 - 2⁷ = 5518000001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5518000129.

It is not an unprimeable number, because it can be changed into a prime (5518000529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67292644 + ... + 67292725.

It is an arithmetic number, because the mean of its divisors is an integer number (1413146385).

It is a Proth number, since it is equal to 42099 ⋅ 2¹⁷ + 1 and 42099 < 2¹⁷.

Almost surely, 2^5518000129 is an apocalyptic number.

It is an amenable number.

5518000129 is a deficient number, since it is larger than the sum of its proper divisors (134585411).

5518000129 is a wasteful number, since it uses less digits than its factorization.

5518000129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134585410.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 5518000129 is about 74283.2425853907. The cubic root of 5518000129 is about 1767.0977290880.

The spelling of 5518000129 in words is "five billion, five hundred eighteen million, one hundred twenty-nine", and thus it is an aban number.