522213210 has 64 divisors (see below), whose sum is σ = 1397727360. Its totient is φ = 138741120.

The previous prime is 522213169. The next prime is 522213217. The reversal of 522213210 is 12312225.

522213210 is a `hidden beast` number, since 522 + 2 + 132 + 10 = 666.

522213210 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (522213217) 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, 72429 + ... + 79311.

It is an arithmetic number, because the mean of its divisors is an integer number (21839490).

Almost surely, 2^522213210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522213210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698863680).

522213210 is an abundant number, since it is smaller than the sum of its proper divisors (875514150).

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

522213210 is a wasteful number, since it uses less digits than its factorization.

522213210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7180 (or 7174 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 522213210 is about 22851.9848153284. The cubic root of 522213210 is about 805.2843972827.

Adding to 522213210 its reverse (12312225), we get a palindrome (534525435).

The spelling of 522213210 in words is "five hundred twenty-two million, two hundred thirteen thousand, two hundred ten".