53043343 has 4 divisors (see below), whose sum is σ = 53912968. Its totient is φ = 52173720.

The previous prime is 53043323. The next prime is 53043371. The reversal of 53043343 is 34334035.

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 53043343 - 2⁹ = 53042831 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 (53043323) 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, 434721 + ... + 434842.

It is an arithmetic number, because the mean of its divisors is an integer number (13478242).

Almost surely, 2^53043343 is an apocalyptic number.

53043343 is a deficient number, since it is larger than the sum of its proper divisors (869625).

53043343 is an equidigital number, since it uses as much as digits as its factorization.

53043343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869624.

The product of its (nonzero) digits is 6480, while the sum is 25.

The square root of 53043343 is about 7283.0860903878. The cubic root of 53043343 is about 375.7309429267.

Adding to 53043343 its reverse (34334035), we get a palindrome (87377378).

The spelling of 53043343 in words is "fifty-three million, forty-three thousand, three hundred forty-three".