522625 has 16 divisors (see below), whose sum is σ = 675792. Its totient is φ = 403200.

The previous prime is 522623. The next prime is 522637. The reversal of 522625 is 526225.

It can be written as a sum of positive squares in 8 ways, for example, as 219024 + 303601 = 468^2 + 551^2 .

It is not a de Polignac number, because 522625 - 2¹ = 522623 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 522596 and 522605.

It is not an unprimeable number, because it can be changed into a prime (522623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4569 + ... + 4681.

It is an arithmetic number, because the mean of its divisors is an integer number (42237).

2⁵²²⁶²⁵ is an apocalyptic number.

It is an amenable number.

522625 is a deficient number, since it is larger than the sum of its proper divisors (153167).

522625 is a wasteful number, since it uses less digits than its factorization.

522625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 155 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 522625 is about 722.9280738773. The cubic root of 522625 is about 80.5496010043.

Subtracting 522625 from its reverse (526225), we obtain a square (3600 = 60²).

The spelling of 522625 in words is "five hundred twenty-two thousand, six hundred twenty-five".