503231 has 2 divisors, whose sum is σ = 503232. Its totient is φ = 503230.

The previous prime is 503227. The next prime is 503233. The reversal of 503231 is 132305.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 503231 - 2² = 503227 is a prime.

It is a super-2 number, since 2×503231² = 506482878722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 503233, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 503231.

It is not a weakly prime, because it can be changed into another prime (503233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251615 + 251616.

It is an arithmetic number, because the mean of its divisors is an integer number (251616).

2⁵⁰³²³¹ is an apocalyptic number.

503231 is a deficient number, since it is larger than the sum of its proper divisors (1).

503231 is an equidigital number, since it uses as much as digits as its factorization.

503231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 503231 is about 709.3877642023. The cubic root of 503231 is about 79.5406487536.

Adding to 503231 its reverse (132305), we get a palindrome (635536).

The spelling of 503231 in words is "five hundred three thousand, two hundred thirty-one".