503263 has 4 divisors (see below), whose sum is σ = 525168. Its totient is φ = 481360.

The previous prime is 503249. The next prime is 503267. The reversal of 503263 is 362305.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362305 = 5 ⋅72461.

It is a cyclic number.

It is not a de Polignac number, because 503263 - 2⁵ = 503231 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 503263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503267) 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, 10918 + ... + 10963.

It is an arithmetic number, because the mean of its divisors is an integer number (131292).

2⁵⁰³²⁶³ is an apocalyptic number.

503263 is a deficient number, since it is larger than the sum of its proper divisors (21905).

503263 is a wasteful number, since it uses less digits than its factorization.

503263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21904.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 503263 is about 709.4103185040. The cubic root of 503263 is about 79.5423346903.

Adding to 503263 its reverse (362305), we get a palindrome (865568).

The spelling of 503263 in words is "five hundred three thousand, two hundred sixty-three".