5516451613 has 8 divisors (see below), whose sum is σ = 5609134296. Its totient is φ = 5423841600.

The previous prime is 5516451607. The next prime is 5516451631. The reversal of 5516451613 is 3161546155.

It can be written as a sum of positive squares in 4 ways, for example, as 521071929 + 4995379684 = 22827^2 + 70678^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5516451613 - 2¹³ = 5516443421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5516451653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147483 + ... + 181063.

It is an arithmetic number, because the mean of its divisors is an integer number (701141787).

Almost surely, 2^5516451613 is an apocalyptic number.

It is an amenable number.

5516451613 is a deficient number, since it is larger than the sum of its proper divisors (92682683).

5516451613 is a wasteful number, since it uses less digits than its factorization.

5516451613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36335.

The product of its digits is 54000, while the sum is 37.

The square root of 5516451613 is about 74272.8188033819. The cubic root of 5516451613 is about 1766.9324134511.

Adding to 5516451613 its reverse (3161546155), we get a palindrome (8677997768).

The spelling of 5516451613 in words is "five billion, five hundred sixteen million, four hundred fifty-one thousand, six hundred thirteen".