530555321 has 8 divisors (see below), whose sum is σ = 545836104. Its totient is φ = 515324160.

The previous prime is 530555309. The next prime is 530555341. The reversal of 530555321 is 123555035.

It can be written as a sum of positive squares in 4 ways, for example, as 275194921 + 255360400 = 16589^2 + 15980^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 530555321 - 2¹⁴ = 530538937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530555341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9851 + ... + 34031.

It is an arithmetic number, because the mean of its divisors is an integer number (68229513).

Almost surely, 2^530555321 is an apocalyptic number.

It is an amenable number.

530555321 is a deficient number, since it is larger than the sum of its proper divisors (15280783).

530555321 is a wasteful number, since it uses less digits than its factorization.

530555321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24811.

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 530555321 is about 23033.7865102549. The cubic root of 530555321 is about 809.5497782509.

The spelling of 530555321 in words is "five hundred thirty million, five hundred fifty-five thousand, three hundred twenty-one".