52143843 has 4 divisors (see below), whose sum is σ = 69525128. Its totient is φ = 34762560.

The previous prime is 52143823. The next prime is 52143851. The reversal of 52143843 is 34834125.

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

It is not a de Polignac number, because 52143843 - 2⁶ = 52143779 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 52143843.

It is not an unprimeable number, because it can be changed into a prime (52143803) 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, 8690638 + ... + 8690643.

It is an arithmetic number, because the mean of its divisors is an integer number (17381282).

Almost surely, 2^52143843 is an apocalyptic number.

52143843 is a deficient number, since it is larger than the sum of its proper divisors (17381285).

52143843 is a wasteful number, since it uses less digits than its factorization.

52143843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17381284.

The product of its digits is 11520, while the sum is 30.

The square root of 52143843 is about 7221.0693806389. The cubic root of 52143843 is about 373.5949626728.

Adding to 52143843 its reverse (34834125), we get a palindrome (86977968).

The spelling of 52143843 in words is "fifty-two million, one hundred forty-three thousand, eight hundred forty-three".