522609 has 8 divisors (see below), whose sum is σ = 720960. Its totient is φ = 336336.

The previous prime is 522601. The next prime is 522623. The reversal of 522609 is 906225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 522609 - 2³ = 522601 is a prime.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (522601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2917 + ... + 3090.

It is an arithmetic number, because the mean of its divisors is an integer number (90120).

2⁵²²⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

522609 is a deficient number, since it is larger than the sum of its proper divisors (198351).

522609 is a wasteful number, since it uses less digits than its factorization.

522609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6039.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 522609 is about 722.9170076848. The cubic root of 522609 is about 80.5487789957.

The spelling of 522609 in words is "five hundred twenty-two thousand, six hundred nine".