517272193 has 4 divisors (see below), whose sum is σ = 517319680. Its totient is φ = 517224708.

The previous prime is 517272181. The next prime is 517272221. The reversal of 517272193 is 391272715.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 391272715 = 5 ⋅78254543.

It is a cyclic number.

It is not a de Polignac number, because 517272193 - 2²¹ = 515175041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (517272163) 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, 1648 + ... + 32206.

It is an arithmetic number, because the mean of its divisors is an integer number (129329920).

Almost surely, 2^517272193 is an apocalyptic number.

It is an amenable number.

517272193 is a deficient number, since it is larger than the sum of its proper divisors (47487).

517272193 is a wasteful number, since it uses less digits than its factorization.

517272193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47486.

The product of its digits is 26460, while the sum is 37.

The square root of 517272193 is about 22743.6187314156. The cubic root of 517272193 is about 802.7365622145.

The spelling of 517272193 in words is "five hundred seventeen million, two hundred seventy-two thousand, one hundred ninety-three".