505531324 has 24 divisors (see below), whose sum is σ = 893352320. Its totient is φ = 250297776.

The previous prime is 505531307. The next prime is 505531357. The reversal of 505531324 is 423135505.

It is a junction number, because it is equal to n+sod(n) for n = 505531292 and 505531301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269839 + ... + 271705.

Almost surely, 2^505531324 is an apocalyptic number.

It is an amenable number.

505531324 is a deficient number, since it is larger than the sum of its proper divisors (387820996).

505531324 is a wasteful number, since it uses less digits than its factorization.

505531324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497 (or 2495 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 505531324 is about 22484.0237502098. The cubic root of 505531324 is about 796.6166089200.

Adding to 505531324 its reverse (423135505), we get a palindrome (928666829).

The spelling of 505531324 in words is "five hundred five million, five hundred thirty-one thousand, three hundred twenty-four".