5187590509 has 2 divisors, whose sum is σ = 5187590510. Its totient is φ = 5187590508.

The previous prime is 5187590503. The next prime is 5187590543. The reversal of 5187590509 is 9050957815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4526329284 + 661261225 = 67278^2 + 25715^2 .

It is a cyclic number.

It is not a de Polignac number, because 5187590509 - 2⁹ = 5187589997 is a prime.

It is a super-2 number, since 2×5187590509² = 53822190578133758162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5187590503) 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 as a sum of consecutive naturals, namely, 2593795254 + 2593795255.

It is an arithmetic number, because the mean of its divisors is an integer number (2593795255).

Almost surely, 2^5187590509 is an apocalyptic number.

It is an amenable number.

5187590509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5187590509 is an equidigital number, since it uses as much as digits as its factorization.

5187590509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567000, while the sum is 49.

The square root of 5187590509 is about 72024.9297743497. The cubic root of 5187590509 is about 1731.0989608331.

The spelling of 5187590509 in words is "five billion, one hundred eighty-seven million, five hundred ninety thousand, five hundred nine".