5515151113 has 4 divisors (see below), whose sum is σ = 5552165700. Its totient is φ = 5478136528.

The previous prime is 5515151099. The next prime is 5515151123. The reversal of 5515151113 is 3111515155.

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 275128569 + 5240022544 = 16587^2 + 72388^2 .

It is a cyclic number.

It is not a de Polignac number, because 5515151113 - 2⁹ = 5515150601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515151123) 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, 18507070 + ... + 18507367.

It is an arithmetic number, because the mean of its divisors is an integer number (1388041425).

Almost surely, 2^5515151113 is an apocalyptic number.

It is an amenable number.

5515151113 is a deficient number, since it is larger than the sum of its proper divisors (37014587).

5515151113 is a wasteful number, since it uses less digits than its factorization.

5515151113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37014586.

The product of its digits is 1875, while the sum is 28.

The square root of 5515151113 is about 74264.0634021597. The cubic root of 5515151113 is about 1766.7935514698.

Adding to 5515151113 its reverse (3111515155), we get a palindrome (8626666268).

The spelling of 5515151113 in words is "five billion, five hundred fifteen million, one hundred fifty-one thousand, one hundred thirteen".