5157991503 has 48 divisors (see below), whose sum is σ = 8978444800. Its totient is φ = 2787462720.

The previous prime is 5157991483. The next prime is 5157991519. The reversal of 5157991503 is 3051997515.

5157991503 is a `hidden beast` number, since 5 + 1 + 57 + 9 + 91 + 503 = 666.

It is not a de Polignac number, because 5157991503 - 2⁹ = 5157990991 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 (5157991543) 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 47 ways as a sum of consecutive naturals, for example, 751893 + ... + 758721.

Almost surely, 2^5157991503 is an apocalyptic number.

5157991503 is a deficient number, since it is larger than the sum of its proper divisors (3820453297).

5157991503 is a wasteful number, since it uses less digits than its factorization.

5157991503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7492 (or 7489 counting only the distinct ones).

The product of its (nonzero) digits is 212625, while the sum is 45.

The square root of 5157991503 is about 71819.1583284015. The cubic root of 5157991503 is about 1727.8002829480.

The spelling of 5157991503 in words is "five billion, one hundred fifty-seven million, nine hundred ninety-one thousand, five hundred three".