531212504 has 8 divisors (see below), whose sum is σ = 996023460. Its totient is φ = 265606248.

The previous prime is 531212503. The next prime is 531212519. The reversal of 531212504 is 405212135.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 531212504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531212501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33200774 + ... + 33200789.

Almost surely, 2^531212504 is an apocalyptic number.

It is an amenable number.

531212504 is a deficient number, since it is larger than the sum of its proper divisors (464810956).

531212504 is a wasteful number, since it uses less digits than its factorization.

531212504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66401569 (or 66401565 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 531212504 is about 23048.0477264344. The cubic root of 531212504 is about 809.8838953637.

Adding to 531212504 its reverse (405212135), we get a palindrome (936424639).

The spelling of 531212504 in words is "five hundred thirty-one million, two hundred twelve thousand, five hundred four".