522243231 has 8 divisors (see below), whose sum is σ = 700350000. Its totient is φ = 346149312.

The previous prime is 522243217. The next prime is 522243259. The reversal of 522243231 is 132342225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 522243231 - 2⁹ = 522242719 is a prime.

It is a super-2 number, since 2×522243231² = 545475984650638722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522243331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502606 + ... + 503643.

It is an arithmetic number, because the mean of its divisors is an integer number (87543750).

Almost surely, 2^522243231 is an apocalyptic number.

522243231 is a deficient number, since it is larger than the sum of its proper divisors (178106769).

522243231 is a wasteful number, since it uses less digits than its factorization.

522243231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006425.

The product of its digits is 2880, while the sum is 24.

The square root of 522243231 is about 22852.6416634926. The cubic root of 522243231 is about 805.2998283871.

Adding to 522243231 its reverse (132342225), we get a palindrome (654585456).

It can be divided in two parts, 52224 and 3231, that added together give a palindrome (55455).

The spelling of 522243231 in words is "five hundred twenty-two million, two hundred forty-three thousand, two hundred thirty-one".