504312631 has 4 divisors (see below), whose sum is σ = 507130200. Its totient is φ = 501495064.

The previous prime is 504312607. The next prime is 504312637. The reversal of 504312631 is 136213405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136213405 = 5 ⋅27242681.

It is a cyclic number.

It is not a de Polignac number, because 504312631 - 2²⁷ = 370094903 is a prime.

It is a super-2 number, since 2×504312631² = 508662459572284322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 504312596 and 504312605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504312637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408516 + ... + 1408873.

It is an arithmetic number, because the mean of its divisors is an integer number (126782550).

Almost surely, 2^504312631 is an apocalyptic number.

504312631 is a deficient number, since it is larger than the sum of its proper divisors (2817569).

504312631 is a wasteful number, since it uses less digits than its factorization.

504312631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817568.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 504312631 is about 22456.9060869925. The cubic root of 504312631 is about 795.9759547420.

The spelling of 504312631 in words is "five hundred four million, three hundred twelve thousand, six hundred thirty-one".