522533220 has 96 divisors (see below), whose sum is σ = 1605381120. Its totient is φ = 125938560.

The previous prime is 522533173. The next prime is 522533239. The reversal of 522533220 is 22335225.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115929 + ... + 120351.

It is an arithmetic number, because the mean of its divisors is an integer number (16722720).

Almost surely, 2^522533220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522533220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802690560).

522533220 is an abundant number, since it is smaller than the sum of its proper divisors (1082847900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522533220 is a wasteful number, since it uses less digits than its factorization.

522533220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4625 (or 4623 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 522533220 is about 22858.9855417952. The cubic root of 522533220 is about 805.4488552946.

Adding to 522533220 its reverse (22335225), we get a palindrome (544868445).

It can be divided in two parts, 522533 and 220, that added together give a triangular number (522753 = T₁₀₂₂).

The spelling of 522533220 in words is "five hundred twenty-two million, five hundred thirty-three thousand, two hundred twenty".