5115000081 has 16 divisors (see below), whose sum is σ = 6943555584. Its totient is φ = 3348715344.

The previous prime is 5115000071. The next prime is 5115000091. The reversal of 5115000081 is 1800005115.

It is an interprime number because it is at equal distance from previous prime (5115000071) and next prime (5115000091).

It is not a de Polignac number, because 5115000081 - 2⁹ = 5114999569 is a prime.

It is a super-2 number, since 2×5115000081² = 52326451657260013122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5115000071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19921 + ... + 103086.

It is an arithmetic number, because the mean of its divisors is an integer number (433972224).

Almost surely, 2^5115000081 is an apocalyptic number.

It is an amenable number.

5115000081 is a deficient number, since it is larger than the sum of its proper divisors (1828555503).

5115000081 is a wasteful number, since it uses less digits than its factorization.

5115000081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123260.

The product of its (nonzero) digits is 200, while the sum is 21.

The square root of 5115000081 is about 71519.2287500362. The cubic root of 5115000081 is about 1722.9865276871.

Adding to 5115000081 its reverse (1800005115), we get a palindrome (6915005196).

The spelling of 5115000081 in words is "five billion, one hundred fifteen million, eighty-one", and thus it is an aban number.