531200000 has 144 divisors (see below), whose sum is σ = 1343585880. Its totient is φ = 209920000.

The previous prime is 531199993. The next prime is 531200011. The reversal of 531200000 is 2135.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 6399959 + ... + 6400041.

Almost surely, 2^531200000 is an apocalyptic number.

531200000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (671792940).

531200000 is an abundant number, since it is smaller than the sum of its proper divisors (812385880).

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

531200000 is an frugal number, since it uses more digits than its factorization.

531200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 531200000 is about 23047.7764654207. The cubic root of 531200000 is about 809.8775408022.

Adding to 531200000 its reverse (2135), we get a palindrome (531202135).

The spelling of 531200000 in words is "five hundred thirty-one million, two hundred thousand".