52385143 has 4 divisors (see below), whose sum is σ = 55466640. Its totient is φ = 49303648.

The previous prime is 52385131. The next prime is 52385159. The reversal of 52385143 is 34158325.

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 52385143 - 2⁵ = 52385111 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 (52385173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540723 + ... + 1540756.

It is an arithmetic number, because the mean of its divisors is an integer number (13866660).

Almost surely, 2^52385143 is an apocalyptic number.

52385143 is a deficient number, since it is larger than the sum of its proper divisors (3081497).

52385143 is a wasteful number, since it uses less digits than its factorization.

52385143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081496.

The product of its digits is 14400, while the sum is 31.

The square root of 52385143 is about 7237.7581473824. The cubic root of 52385143 is about 374.1703566803.

The spelling of 52385143 in words is "fifty-two million, three hundred eighty-five thousand, one hundred forty-three".