5200173991 has 4 divisors (see below), whose sum is σ = 5340719272. Its totient is φ = 5059628712.

The previous prime is 5200173967. The next prime is 5200174073. The reversal of 5200173991 is 1993710025.

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

It is a cyclic number.

It is not a de Polignac number, because 5200173991 - 2¹¹ = 5200171943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 140545243 = 5200173991 / (5 + 2 + 0 + 0 + 1 + 7 + 3 + 9 + 9 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5200173991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5200173931) 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, 70272585 + ... + 70272658.

It is an arithmetic number, because the mean of its divisors is an integer number (1335179818).

Almost surely, 2^5200173991 is an apocalyptic number.

5200173991 is a deficient number, since it is larger than the sum of its proper divisors (140545281).

5200173991 is a wasteful number, since it uses less digits than its factorization.

5200173991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140545280.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 5200173991 is about 72112.2319097114. The cubic root of 5200173991 is about 1732.4975332622.

The spelling of 5200173991 in words is "five billion, two hundred million, one hundred seventy-three thousand, nine hundred ninety-one".