531325152 has 72 divisors (see below), whose sum is σ = 1517914944. Its totient is φ = 176292864.

The previous prime is 531325133. The next prime is 531325169. The reversal of 531325152 is 251523135.

It is a happy number.

531325152 is a `hidden beast` number, since 531 + 32 + 51 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60088 + ... + 68360.

It is an arithmetic number, because the mean of its divisors is an integer number (21082152).

Almost surely, 2^531325152 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 531325152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758957472).

531325152 is an abundant number, since it is smaller than the sum of its proper divisors (986589792).

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

531325152 is a wasteful number, since it uses less digits than its factorization.

531325152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8512 (or 8501 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 531325152 is about 23050.4913613571. The cubic root of 531325152 is about 809.9411388412.

Adding to 531325152 its reverse (251523135), we get a palindrome (782848287).

The spelling of 531325152 in words is "five hundred thirty-one million, three hundred twenty-five thousand, one hundred fifty-two".