522017223 has 32 divisors (see below), whose sum is σ = 893899776. Its totient is φ = 263374848.

The previous prime is 522017189. The next prime is 522017231. The reversal of 522017223 is 322710225.

It is a happy number.

It is not a de Polignac number, because 522017223 - 2⁶ = 522017159 is a prime.

It is a super-2 number, since 2×522017223² = 545003962217263458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 522017193 and 522017202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522017263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35290 + ... + 47847.

It is an arithmetic number, because the mean of its divisors is an integer number (27934368).

Almost surely, 2^522017223 is an apocalyptic number.

522017223 is a deficient number, since it is larger than the sum of its proper divisors (371882553).

522017223 is a wasteful number, since it uses less digits than its factorization.

522017223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83183.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 522017223 is about 22847.6962295983. The cubic root of 522017223 is about 805.1836434027.

Adding to 522017223 its reverse (322710225), we get a palindrome (844727448).

The spelling of 522017223 in words is "five hundred twenty-two million, seventeen thousand, two hundred twenty-three".