531201552 has 120 divisors (see below), whose sum is σ = 1619307072. Its totient is φ = 149587200.

The previous prime is 531201547. The next prime is 531201569. The reversal of 531201552 is 255102135.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165402 + ... + 168582.

Almost surely, 2^531201552 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 531201552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809653536).

531201552 is an abundant number, since it is smaller than the sum of its proper divisors (1088105520).

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

531201552 is a wasteful number, since it uses less digits than its factorization.

531201552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277 (or 3264 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 531201552 is about 23047.8101345876. The cubic root of 531201552 is about 809.8783295376.

Adding to 531201552 its reverse (255102135), we get a palindrome (786303687).

The spelling of 531201552 in words is "five hundred thirty-one million, two hundred one thousand, five hundred fifty-two".