52040243 has 4 divisors (see below), whose sum is σ = 52060800. Its totient is φ = 52019688.

The previous prime is 52040201. The next prime is 52040269. The reversal of 52040243 is 34204025.

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 52040243 - 2⁸ = 52039987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52040273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5843 + ... + 11756.

It is an arithmetic number, because the mean of its divisors is an integer number (13015200).

Almost surely, 2^52040243 is an apocalyptic number.

52040243 is a deficient number, since it is larger than the sum of its proper divisors (20557).

52040243 is a wasteful number, since it uses less digits than its factorization.

52040243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20556.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 52040243 is about 7213.8923612707. The cubic root of 52040243 is about 373.3473776782.

Adding to 52040243 its reverse (34204025), we get a palindrome (86244268).

The spelling of 52040243 in words is "fifty-two million, forty thousand, two hundred forty-three".