5515313243 has 8 divisors (see below), whose sum is σ = 6018551616. Its totient is φ = 5012382600.

The previous prime is 5515313239. The next prime is 5515313249. The reversal of 5515313243 is 3423135155.

5515313243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5515313243 - 2² = 5515313239 is a prime.

It is a super-2 number, since 2×5515313243² = 60837360336822354098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5515313249) 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, 38621 + ... + 111902.

It is an arithmetic number, because the mean of its divisors is an integer number (752318952).

Almost surely, 2^5515313243 is an apocalyptic number.

5515313243 is a deficient number, since it is larger than the sum of its proper divisors (503238373).

5515313243 is a wasteful number, since it uses less digits than its factorization.

5515313243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153865.

The product of its digits is 27000, while the sum is 32.

The square root of 5515313243 is about 74265.1549718978. The cubic root of 5515313243 is about 1766.8108642279.

Adding to 5515313243 its reverse (3423135155), we get a palindrome (8938448398).

The spelling of 5515313243 in words is "five billion, five hundred fifteen million, three hundred thirteen thousand, two hundred forty-three".