5187175949 has 4 divisors (see below), whose sum is σ = 5492303964. Its totient is φ = 4882047936.

The previous prime is 5187175937. The next prime is 5187175951. The reversal of 5187175949 is 9495717815.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9495717815 = 5 ⋅1899143563.

It can be written as a sum of positive squares in 2 ways, for example, as 2366822500 + 2820353449 = 48650^2 + 53107^2 .

It is a cyclic number.

It is not a de Polignac number, because 5187175949 - 2⁴ = 5187175933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5187175894 and 5187175903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5187175999) 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, 152563982 + ... + 152564015.

It is an arithmetic number, because the mean of its divisors is an integer number (1373075991).

Almost surely, 2^5187175949 is an apocalyptic number.

It is an amenable number.

5187175949 is a deficient number, since it is larger than the sum of its proper divisors (305128015).

5187175949 is a wasteful number, since it uses less digits than its factorization.

5187175949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305128014.

The product of its digits is 3175200, while the sum is 56.

The square root of 5187175949 is about 72022.0518244239. The cubic root of 5187175949 is about 1731.0528467138.

The spelling of 5187175949 in words is "five billion, one hundred eighty-seven million, one hundred seventy-five thousand, nine hundred forty-nine".