5115127517 has 4 divisors (see below), whose sum is σ = 5118216156. Its totient is φ = 5112038880.

The previous prime is 5115127499. The next prime is 5115127519. The reversal of 5115127517 is 7157215115.

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 794168761 + 4320958756 = 28181^2 + 65734^2 .

It is a cyclic number.

It is not a de Polignac number, because 5115127517 - 2²² = 5110933213 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 (5115127519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1541834 + ... + 1545147.

It is an arithmetic number, because the mean of its divisors is an integer number (1279554039).

Almost surely, 2^5115127517 is an apocalyptic number.

It is an amenable number.

5115127517 is a deficient number, since it is larger than the sum of its proper divisors (3088639).

5115127517 is a wasteful number, since it uses less digits than its factorization.

5115127517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088638.

The product of its digits is 12250, while the sum is 35.

The square root of 5115127517 is about 71520.1196657276. The cubic root of 5115127517 is about 1723.0008364967. Note that the first 3 decimals are identical.

The spelling of 5115127517 in words is "five billion, one hundred fifteen million, one hundred twenty-seven thousand, five hundred seventeen".