522520 has 16 divisors (see below), whose sum is σ = 1175760. Its totient is φ = 208992.

The previous prime is 522517. The next prime is 522521. The reversal of 522520 is 25225.

522520 is nontrivially palindromic in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 522494 and 522503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6492 + ... + 6571.

It is an arithmetic number, because the mean of its divisors is an integer number (73485).

2⁵²²⁵²⁰ is an apocalyptic number.

It is an amenable number.

522520 is an abundant number, since it is smaller than the sum of its proper divisors (653240).

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

522520 is a wasteful number, since it uses less digits than its factorization.

522520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13074 (or 13070 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 522520 is about 722.8554488969. The cubic root of 522520 is about 80.5442062665.

Adding to 522520 its reverse (25225), we get a palindrome (547745).

The spelling of 522520 in words is "five hundred twenty-two thousand, five hundred twenty".