522542220 has 48 divisors (see below), whose sum is σ = 1467002880. Its totient is φ = 138974656.

The previous prime is 522542219. The next prime is 522542227. The reversal of 522542220 is 22245225.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (522542227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11611 + ... + 34349.

It is an arithmetic number, because the mean of its divisors is an integer number (30562560).

Almost surely, 2^522542220 is an apocalyptic number.

It is an amenable number.

522542220 is an abundant number, since it is smaller than the sum of its proper divisors (944460660).

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

522542220 is a wasteful number, since it uses less digits than its factorization.

522542220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23134 (or 23132 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 522542220 is about 22859.1824000772. The cubic root of 522542220 is about 805.4534795608.

Adding to 522542220 its reverse (22245225), we get a palindrome (544787445).

The spelling of 522542220 in words is "five hundred twenty-two million, five hundred forty-two thousand, two hundred twenty".