53385143 has 8 divisors (see below), whose sum is σ = 63115680. Its totient is φ = 44180640.

The previous prime is 53385127. The next prime is 53385149. The reversal of 53385143 is 34158335.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53385143 - 2⁴ = 53385127 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 (53385149) 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 7 ways as a sum of consecutive naturals, for example, 131288 + ... + 131693.

It is an arithmetic number, because the mean of its divisors is an integer number (7889460).

Almost surely, 2^53385143 is an apocalyptic number.

53385143 is a deficient number, since it is larger than the sum of its proper divisors (9730537).

53385143 is a wasteful number, since it uses less digits than its factorization.

53385143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263017.

The product of its digits is 21600, while the sum is 32.

The square root of 53385143 is about 7306.5137377548. The cubic root of 53385143 is about 376.5362590129.

The spelling of 53385143 in words is "fifty-three million, three hundred eighty-five thousand, one hundred forty-three".