523210212 has 96 divisors (see below), whose sum is σ = 1554156800. Its totient is φ = 149112576.

The previous prime is 523210183. The next prime is 523210217. The reversal of 523210212 is 212012325.

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 (523210217) 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, 462864 + ... + 463992.

Almost surely, 2^523210212 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 523210212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777078400).

523210212 is an abundant number, since it is smaller than the sum of its proper divisors (1030946588).

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

523210212 is a wasteful number, since it uses less digits than its factorization.

523210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762 (or 1754 counting only the distinct ones).

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

The square root of 523210212 is about 22873.7887548172. The cubic root of 523210212 is about 805.7965506445.

Adding to 523210212 its reverse (212012325), we get a palindrome (735222537).

The spelling of 523210212 in words is "five hundred twenty-three million, two hundred ten thousand, two hundred twelve".