522507 has 4 divisors (see below), whose sum is σ = 696680. Its totient is φ = 348336.

The previous prime is 522497. The next prime is 522517. The reversal of 522507 is 705225.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (522497) and next prime (522517).

It is not a de Polignac number, because 522507 - 2⁸ = 522251 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 522507.

It is not an unprimeable number, because it can be changed into a prime (522517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87082 + ... + 87087.

It is an arithmetic number, because the mean of its divisors is an integer number (174170).

2⁵²²⁵⁰⁷ is an apocalyptic number.

522507 is a deficient number, since it is larger than the sum of its proper divisors (174173).

522507 is a wasteful number, since it uses less digits than its factorization.

522507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174172.

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 522507 is about 722.8464567251. The cubic root of 522507 is about 80.5435382963.

The spelling of 522507 in words is "five hundred twenty-two thousand, five hundred seven".