531534664 has 32 divisors (see below), whose sum is σ = 1005258240. Its totient is φ = 263476800.

The previous prime is 531534659. The next prime is 531534667. The reversal of 531534664 is 466435135.

It is not an unprimeable number, because it can be changed into a prime (531534667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826327 + ... + 826969.

It is an arithmetic number, because the mean of its divisors is an integer number (31414320).

Almost surely, 2^531534664 is an apocalyptic number.

It is an amenable number.

531534664 is a deficient number, since it is larger than the sum of its proper divisors (473723576).

531534664 is a wasteful number, since it uses less digits than its factorization.

531534664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381 (or 1377 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The square root of 531534664 is about 23055.0355454074. The cubic root of 531534664 is about 810.0475834466.

Adding to 531534664 its reverse (466435135), we get a palindrome (997969799).

The spelling of 531534664 in words is "five hundred thirty-one million, five hundred thirty-four thousand, six hundred sixty-four".