522503 has 4 divisors (see below), whose sum is σ = 524208. Its totient is φ = 520800.

The previous prime is 522497. The next prime is 522517. The reversal of 522503 is 305225.

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

It is a cyclic number.

It is not a de Polignac number, because 522503 - 2⁶ = 522439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522523) 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, 251 + ... + 1052.

It is an arithmetic number, because the mean of its divisors is an integer number (131052).

2⁵²²⁵⁰³ is an apocalyptic number.

522503 is a deficient number, since it is larger than the sum of its proper divisors (1705).

522503 is a wasteful number, since it uses less digits than its factorization.

522503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 522503 is about 722.8436898805. The cubic root of 522503 is about 80.5433327648.

Adding to 522503 its reverse (305225), we get a palindrome (827728).

The spelling of 522503 in words is "five hundred twenty-two thousand, five hundred three".