523321222 has 4 divisors (see below), whose sum is σ = 784981836. Its totient is φ = 261660610.

The previous prime is 523321189. The next prime is 523321243. The reversal of 523321222 is 222123325.

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

It is a junction number, because it is equal to n+sod(n) for n = 523321193 and 523321202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130830304 + ... + 130830307.

It is an arithmetic number, because the mean of its divisors is an integer number (196245459).

Almost surely, 2^523321222 is an apocalyptic number.

523321222 is a deficient number, since it is larger than the sum of its proper divisors (261660614).

523321222 is a wasteful number, since it uses less digits than its factorization.

523321222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261660613.

The product of its digits is 1440, while the sum is 22.

The square root of 523321222 is about 22876.2152026947. The cubic root of 523321222 is about 805.8535354837.

Adding to 523321222 its reverse (222123325), we get a palindrome (745444547).

The spelling of 523321222 in words is "five hundred twenty-three million, three hundred twenty-one thousand, two hundred twenty-two".