531534660 has 48 divisors (see below), whose sum is σ = 1524604032. Its totient is φ = 138284800.

The previous prime is 531534659. The next prime is 531534667. The reversal of 531534660 is 66435135.

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 15 ways as a sum of consecutive naturals, for example, 105576 + ... + 110495.

It is an arithmetic number, because the mean of its divisors is an integer number (31762584).

Almost surely, 2^531534660 is an apocalyptic number.

It is an amenable number.

531534660 is an abundant number, since it is smaller than the sum of its proper divisors (993069372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531534660 is a wasteful number, since it uses less digits than its factorization.

531534660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216124 (or 216122 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 531534660 is about 23055.0354586585. The cubic root of 531534660 is about 810.0475814146.

Adding to 531534660 its reverse (66435135), we get a palindrome (597969795).

The spelling of 531534660 in words is "five hundred thirty-one million, five hundred thirty-four thousand, six hundred sixty".