531355232032 has 48 divisors (see below), whose sum is σ = 1082882485440. Its totient is φ = 256349382912.

The previous prime is 531355232021. The next prime is 531355232041. The reversal of 531355232032 is 230232553135.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1246363 + ... + 1617445.

It is an arithmetic number, because the mean of its divisors is an integer number (22560051780).

Almost surely, 2^531355232032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531355232032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541441242720).

531355232032 is an abundant number, since it is smaller than the sum of its proper divisors (551527253408).

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

531355232032 is a wasteful number, since it uses less digits than its factorization.

531355232032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372665 (or 372657 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 34.

Adding to 531355232032 its reverse (230232553135), we get a palindrome (761587785167).

The spelling of 531355232032 in words is "five hundred thirty-one billion, three hundred fifty-five million, two hundred thirty-two thousand, thirty-two".