522560 has 56 divisors (see below), whose sum is σ = 1316736. Its totient is φ = 197120.

The previous prime is 522553. The next prime is 522569. The reversal of 522560 is 65225.

It is a happy number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 522560.

It is not an unprimeable number, because it can be changed into a prime (522569) by changing a digit.

522560 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7325 + ... + 7395.

2⁵²²⁵⁶⁰ 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 522560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658368).

522560 is an abundant number, since it is smaller than the sum of its proper divisors (794176).

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

522560 is a wasteful number, since it uses less digits than its factorization.

522560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 522560 is about 722.8831164165. The cubic root of 522560 is about 80.5462614899.

Adding to 522560 its reverse (65225), we get a palindrome (587785).

The spelling of 522560 in words is "five hundred twenty-two thousand, five hundred sixty".