531125010 has 96 divisors (see below), whose sum is σ = 1527467760. Its totient is φ = 127194624.

The previous prime is 531125009. The next prime is 531125027. The reversal of 531125010 is 10521135.

531125010 is a `hidden beast` number, since 53 + 112 + 501 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 386476281 + 144648729 = 19659^2 + 12027^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37156 + ... + 49424.

Almost surely, 2^531125010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531125010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763733880).

531125010 is an abundant number, since it is smaller than the sum of its proper divisors (996342750).

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

531125010 is a wasteful number, since it uses less digits than its factorization.

531125010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12332 (or 12329 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 531125010 is about 23046.1495699390. The cubic root of 531125010 is about 809.8394286191.

Adding to 531125010 its reverse (10521135), we get a palindrome (541646145).

The spelling of 531125010 in words is "five hundred thirty-one million, one hundred twenty-five thousand, ten".