502631 has 2 divisors, whose sum is σ = 502632. Its totient is φ = 502630.

The previous prime is 502613. The next prime is 502633. The reversal of 502631 is 136205.

Together with previous prime (502613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 502631 - 2¹⁴ = 486247 is a prime.

It is a super-2 number, since 2×502631² = 505275844322, which contains 22 as substring.

Together with 502633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (502633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251315 + 251316.

It is an arithmetic number, because the mean of its divisors is an integer number (251316).

2⁵⁰²⁶³¹ is an apocalyptic number.

502631 is a deficient number, since it is larger than the sum of its proper divisors (1).

502631 is an equidigital number, since it uses as much as digits as its factorization.

502631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 502631 is about 708.9647381922. The cubic root of 502631 is about 79.5090241988.

Adding to 502631 its reverse (136205), we get a palindrome (638836).

The spelling of 502631 in words is "five hundred two thousand, six hundred thirty-one".