5128318503 has 48 divisors (see below), whose sum is σ = 9450245376. Its totient is φ = 2602091520.

The previous prime is 5128318451. The next prime is 5128318513. The reversal of 5128318503 is 3058138215.

5128318503 is a `hidden beast` number, since 512 + 83 + 18 + 50 + 3 = 666.

It is not a de Polignac number, because 5128318503 - 2¹⁰ = 5128317479 is a prime.

It is a super-2 number, since 2×5128318503² = 52599301336424322018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128318513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56250 + ... + 115847.

It is an arithmetic number, because the mean of its divisors is an integer number (196880112).

Almost surely, 2^5128318503 is an apocalyptic number.

5128318503 is a deficient number, since it is larger than the sum of its proper divisors (4321926873).

5128318503 is a wasteful number, since it uses less digits than its factorization.

5128318503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172164 (or 172161 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 5128318503 is about 71612.2789959934. The cubic root of 5128318503 is about 1724.4806673567.

The spelling of 5128318503 in words is "five billion, one hundred twenty-eight million, three hundred eighteen thousand, five hundred three".