517222 has 4 divisors (see below), whose sum is σ = 775836. Its totient is φ = 258610.

The previous prime is 517217. The next prime is 517229. The reversal of 517222 is 222715.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222715 = 5 ⋅44543.

It is a self number, because there is not a number n which added to its sum of digits gives 517222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129304 + ... + 129307.

It is an arithmetic number, because the mean of its divisors is an integer number (193959).

2⁵¹⁷²²² is an apocalyptic number.

517222 is a deficient number, since it is larger than the sum of its proper divisors (258614).

517222 is a wasteful number, since it uses less digits than its factorization.

517222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258613.

The product of its digits is 280, while the sum is 19.

The square root of 517222 is about 719.1814791831. The cubic root of 517222 is about 80.2710597123.

Adding to 517222 its reverse (222715), we get a palindrome (739937).

The spelling of 517222 in words is "five hundred seventeen thousand, two hundred twenty-two".