522065 has 8 divisors (see below), whose sum is σ = 630888. Its totient is φ = 414720.

The previous prime is 522061. The next prime is 522073. The reversal of 522065 is 560225.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9409 + 512656 = 97^2 + 716^2 .

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

It is not a de Polignac number, because 522065 - 2² = 522061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522061) 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, 695 + ... + 1235.

It is an arithmetic number, because the mean of its divisors is an integer number (78861).

2⁵²²⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

522065 is a deficient number, since it is larger than the sum of its proper divisors (108823).

522065 is a wasteful number, since it uses less digits than its factorization.

522065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739.

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

The square root of 522065 is about 722.5406562955. The cubic root of 522065 is about 80.5208207142.

The spelling of 522065 in words is "five hundred twenty-two thousand, sixty-five".