531006216 has 64 divisors (see below), whose sum is σ = 1437683520. Its totient is φ = 162466560.

The previous prime is 531006209. The next prime is 531006239. The reversal of 531006216 is 612600135.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51771 + ... + 61173.

It is an arithmetic number, because the mean of its divisors is an integer number (22463805).

Almost surely, 2^531006216 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 531006216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718841760).

531006216 is an abundant number, since it is smaller than the sum of its proper divisors (906677304).

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

531006216 is a wasteful number, since it uses less digits than its factorization.

531006216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9606 (or 9602 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 531006216 is about 23043.5721189229. The cubic root of 531006216 is about 809.7790465768.

The spelling of 531006216 in words is "five hundred thirty-one million, six thousand, two hundred sixteen".