522559 has 4 divisors (see below), whose sum is σ = 526680. Its totient is φ = 518440.

The previous prime is 522553. The next prime is 522569. The reversal of 522559 is 955225.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 522559 - 2⁹ = 522047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1864 + ... + 2125.

It is an arithmetic number, because the mean of its divisors is an integer number (131670).

2⁵²²⁵⁵⁹ is an apocalyptic number.

522559 is a deficient number, since it is larger than the sum of its proper divisors (4121).

522559 is a wasteful number, since it uses less digits than its factorization.

522559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120.

The product of its digits is 4500, while the sum is 28.

The square root of 522559 is about 722.8824247414. The cubic root of 522559 is about 80.5462101106.

It can be divided in two parts, 522 and 559, that added together give a triangular number (1081 = T₄₆).

The spelling of 522559 in words is "five hundred twenty-two thousand, five hundred fifty-nine".