52745143 has 4 divisors (see below), whose sum is σ = 57540168. Its totient is φ = 47950120.

The previous prime is 52745131. The next prime is 52745179. The reversal of 52745143 is 34154725.

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 52745143 - 2⁵ = 52745111 is a prime.

It is a super-2 number, since 2×52745143² = 5564100220180898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52745243) 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, 2397496 + ... + 2397517.

It is an arithmetic number, because the mean of its divisors is an integer number (14385042).

Almost surely, 2^52745143 is an apocalyptic number.

52745143 is a deficient number, since it is larger than the sum of its proper divisors (4795025).

52745143 is a wasteful number, since it uses less digits than its factorization.

52745143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795024.

The product of its digits is 16800, while the sum is 31.

The square root of 52745143 is about 7262.5851458004. The cubic root of 52745143 is about 375.0255224111.

Adding to 52745143 its reverse (34154725), we get a palindrome (86899868).

The spelling of 52745143 in words is "fifty-two million, seven hundred forty-five thousand, one hundred forty-three".