52320313 has 4 divisors (see below), whose sum is σ = 52471440. Its totient is φ = 52169188.

The previous prime is 52320311. The next prime is 52320347. The reversal of 52320313 is 31302325.

52320313 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52320313 - 2¹ = 52320311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52320311) 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, 75043 + ... + 75736.

It is an arithmetic number, because the mean of its divisors is an integer number (13117860).

Almost surely, 2^52320313 is an apocalyptic number.

It is an amenable number.

52320313 is a deficient number, since it is larger than the sum of its proper divisors (151127).

52320313 is a wasteful number, since it uses less digits than its factorization.

52320313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151126.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 52320313 is about 7233.2781641521. The cubic root of 52320313 is about 374.0159396297.

Adding to 52320313 its reverse (31302325), we get a palindrome (83622638).

The spelling of 52320313 in words is "fifty-two million, three hundred twenty thousand, three hundred thirteen".