502505231 has 2 divisors, whose sum is σ = 502505232. Its totient is φ = 502505230.

The previous prime is 502505203. The next prime is 502505233. The reversal of 502505231 is 132505205.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 502505231 - 2⁶ = 502505167 is a prime.

It is a super-2 number, since 2×502505231² = 505023014364726722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 502505233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 502505197 and 502505206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (502505233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251252615 + 251252616.

It is an arithmetic number, because the mean of its divisors is an integer number (251252616).

Almost surely, 2^502505231 is an apocalyptic number.

502505231 is a deficient number, since it is larger than the sum of its proper divisors (1).

502505231 is an equidigital number, since it uses as much as digits as its factorization.

502505231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 502505231 is about 22416.6284485424. The cubic root of 502505231 is about 795.0239202750.

The spelling of 502505231 in words is "five hundred two million, five hundred five thousand, two hundred thirty-one".