52320043 has 4 divisors (see below), whose sum is σ = 52385368. Its totient is φ = 52254720.

The previous prime is 52320029. The next prime is 52320061. The reversal of 52320043 is 34002325.

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

It is a cyclic number.

It is not a de Polignac number, because 52320043 - 2¹³ = 52311851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52320043.

It is not an unprimeable number, because it can be changed into a prime (52320013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31446 + ... + 33067.

It is an arithmetic number, because the mean of its divisors is an integer number (13096342).

Almost surely, 2^52320043 is an apocalyptic number.

52320043 is a deficient number, since it is larger than the sum of its proper divisors (65325).

52320043 is an equidigital number, since it uses as much as digits as its factorization.

52320043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65324.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 52320043 is about 7233.2595003912. The cubic root of 52320043 is about 374.0152962564.

Adding to 52320043 its reverse (34002325), we get a palindrome (86322368).

The spelling of 52320043 in words is "fifty-two million, three hundred twenty thousand, forty-three".