522945 has 12 divisors (see below), whose sum is σ = 906516. Its totient is φ = 278880.

The previous prime is 522943. The next prime is 522947. The reversal of 522945 is 549225.

It is an interprime number because it is at equal distance from previous prime (522943) and next prime (522947).

It can be written as a sum of positive squares in 2 ways, for example, as 103041 + 419904 = 321^2 + 648^2 .

It is not a de Polignac number, because 522945 - 2¹ = 522943 is a prime.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (522943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5766 + ... + 5855.

It is an arithmetic number, because the mean of its divisors is an integer number (75543).

2⁵²²⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

522945 is a deficient number, since it is larger than the sum of its proper divisors (383571).

522945 is a wasteful number, since it uses less digits than its factorization.

522945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11632 (or 11629 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 522945 is about 723.1493621652. The cubic root of 522945 is about 80.5660376548.

The spelling of 522945 in words is "five hundred twenty-two thousand, nine hundred forty-five".