532520321 has 2 divisors, whose sum is σ = 532520322. Its totient is φ = 532520320.

The previous prime is 532520279. The next prime is 532520333. The reversal of 532520321 is 123025235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369600625 + 162919696 = 19225^2 + 12764^2 .

It is a cyclic number.

It is not a de Polignac number, because 532520321 - 2¹⁰ = 532519297 is a prime.

It is not a weakly prime, because it can be changed into another prime (532526321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266260160 + 266260161.

It is an arithmetic number, because the mean of its divisors is an integer number (266260161).

Almost surely, 2^532520321 is an apocalyptic number.

It is an amenable number.

532520321 is a deficient number, since it is larger than the sum of its proper divisors (1).

532520321 is an equidigital number, since it uses as much as digits as its factorization.

532520321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 532520321 is about 23076.4018209079. The cubic root of 532520321 is about 810.5479810736.

Adding to 532520321 its reverse (123025235), we get a palindrome (655545556).

The spelling of 532520321 in words is "five hundred thirty-two million, five hundred twenty thousand, three hundred twenty-one".