52320533 has 4 divisors (see below), whose sum is σ = 52485900. Its totient is φ = 52155168.

The previous prime is 52320503. The next prime is 52320557. The reversal of 52320533 is 33502325.

52320533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28281124 + 24039409 = 5318^2 + 4903^2 .

It is a cyclic number.

It is not a de Polignac number, because 52320533 - 2⁸ = 52320277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52320499 and 52320508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52320503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82208 + ... + 82841.

It is an arithmetic number, because the mean of its divisors is an integer number (13121475).

Almost surely, 2^52320533 is an apocalyptic number.

It is an amenable number.

52320533 is a deficient number, since it is larger than the sum of its proper divisors (165367).

52320533 is a wasteful number, since it uses less digits than its factorization.

52320533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165366.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 52320533 is about 7233.2933716254. The cubic root of 52320533 is about 374.0164638581.

Adding to 52320533 its reverse (33502325), we get a palindrome (85822858).

The spelling of 52320533 in words is "fifty-two million, three hundred twenty thousand, five hundred thirty-three".