5117542369 has 3 divisors (see below), whose sum is σ = 5117613907. Its totient is φ = 5117470832.

The previous prime is 5117542363. The next prime is 5117542399. The reversal of 5117542369 is 9632457115.

The square root of 5117542369 is 71537.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1991390625 + 3126151744 = 44625^2 + 55912^2 .

It is not a de Polignac number, because 5117542369 - 2¹¹ = 5117540321 is a prime.

It is a super-2 number, since 2×5117542369² = 52378479797020264322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5117542363) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 35769 + ... + 107305.

Almost surely, 2^5117542369 is an apocalyptic number.

5117542369 is the 71537-th square number.

5117542369 is the 35769-th centered octagonal number.

It is an amenable number.

5117542369 is a deficient number, since it is larger than the sum of its proper divisors (71538).

5117542369 is an frugal number, since it uses more digits than its factorization.

5117542369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143074 (or 71537 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The cubic root of 5117542369 is about 1723.2719367710.

The spelling of 5117542369 in words is "five billion, one hundred seventeen million, five hundred forty-two thousand, three hundred sixty-nine".