5087191517 has 4 divisors (see below), whose sum is σ = 5088526716. Its totient is φ = 5085856320.

The previous prime is 5087191507. The next prime is 5087191541. The reversal of 5087191517 is 7151917805.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2109197476 + 2977994041 = 45926^2 + 54571^2 .

It is a cyclic number.

It is not a de Polignac number, because 5087191517 - 2¹² = 5087187421 is a prime.

It is a super-2 number, since 2×5087191517² = 51759035061273522578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5087191507) 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, 661868 + ... + 669509.

It is an arithmetic number, because the mean of its divisors is an integer number (1272131679).

Almost surely, 2^5087191517 is an apocalyptic number.

It is an amenable number.

5087191517 is a deficient number, since it is larger than the sum of its proper divisors (1335199).

5087191517 is a wasteful number, since it uses less digits than its factorization.

5087191517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335198.

The product of its (nonzero) digits is 88200, while the sum is 44.

The square root of 5087191517 is about 71324.5505909431. The cubic root of 5087191517 is about 1719.8584159867.

The spelling of 5087191517 in words is "five billion, eighty-seven million, one hundred ninety-one thousand, five hundred seventeen".