522425 has 6 divisors (see below), whose sum is σ = 647838. Its totient is φ = 417920.

The previous prime is 522413. The next prime is 522439. The reversal of 522425 is 524225.

It can be written as a sum of positive squares in 3 ways, for example, as 44944 + 477481 = 212^2 + 691^2 .

It is not a de Polignac number, because 522425 - 2⁴ = 522409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 522397 and 522406.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10424 + ... + 10473.

It is an arithmetic number, because the mean of its divisors is an integer number (107973).

2⁵²²⁴²⁵ is an apocalyptic number.

It is an amenable number.

522425 is a deficient number, since it is larger than the sum of its proper divisors (125413).

522425 is a wasteful number, since it uses less digits than its factorization.

522425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20907 (or 20902 counting only the distinct ones).

The product of its digits is 800, while the sum is 20.

The square root of 522425 is about 722.7897342935. The cubic root of 522425 is about 80.5393246905.

The spelling of 522425 in words is "five hundred twenty-two thousand, four hundred twenty-five".