5115311503 has 4 divisors (see below), whose sum is σ = 5136714720. Its totient is φ = 5093908288.

The previous prime is 5115311473. The next prime is 5115311533. The reversal of 5115311503 is 3051135115.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (5115311473) and next prime (5115311533).

It is a cyclic number.

It is not a de Polignac number, because 5115311503 - 2⁵ = 5115311471 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 (5115311533) 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, 10701250 + ... + 10701727.

It is an arithmetic number, because the mean of its divisors is an integer number (1284178680).

Almost surely, 2^5115311503 is an apocalyptic number.

5115311503 is a deficient number, since it is larger than the sum of its proper divisors (21403217).

5115311503 is a wasteful number, since it uses less digits than its factorization.

5115311503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21403216.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 5115311503 is about 71521.4059076022. The cubic root of 5115311503 is about 1723.0214944523.

Adding to 5115311503 its reverse (3051135115), we get a palindrome (8166446618).

The spelling of 5115311503 in words is "five billion, one hundred fifteen million, three hundred eleven thousand, five hundred three".