522020252 has 12 divisors (see below), whose sum is σ = 983807496. Its totient is φ = 240932400.

The previous prime is 522020251. The next prime is 522020287. The reversal of 522020252 is 252020225.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522020251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5019374 + ... + 5019477.

It is an arithmetic number, because the mean of its divisors is an integer number (81983958).

Almost surely, 2^522020252 is an apocalyptic number.

522020252 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

522020252 is a deficient number, since it is larger than the sum of its proper divisors (461787244).

522020252 is a wasteful number, since it uses less digits than its factorization.

522020252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10038868 (or 10038866 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 522020252 is about 22847.7625162728. The cubic root of 522020252 is about 805.1852007565.

Adding to 522020252 its reverse (252020225), we get a palindrome (774040477).

The spelling of 522020252 in words is "five hundred twenty-two million, twenty thousand, two hundred fifty-two".