52317143 has 4 divisors (see below), whose sum is σ = 55394640. Its totient is φ = 49239648.

The previous prime is 52317053. The next prime is 52317169. The reversal of 52317143 is 34171325.

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 52317143 - 2¹⁰ = 52316119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52317173) 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, 1538723 + ... + 1538756.

It is an arithmetic number, because the mean of its divisors is an integer number (13848660).

Almost surely, 2^52317143 is an apocalyptic number.

52317143 is a deficient number, since it is larger than the sum of its proper divisors (3077497).

52317143 is a wasteful number, since it uses less digits than its factorization.

52317143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077496.

The product of its digits is 2520, while the sum is 26.

The square root of 52317143 is about 7233.0590347377. The cubic root of 52317143 is about 374.0083858110.

Adding to 52317143 its reverse (34171325), we get a palindrome (86488468).

The spelling of 52317143 in words is "fifty-two million, three hundred seventeen thousand, one hundred forty-three".