53305443 has 6 divisors (see below), whose sum is σ = 76996764. Its totient is φ = 35536956.

The previous prime is 53305433. The next prime is 53305459. The reversal of 53305443 is 34450335.

It is a happy number.

It is not a de Polignac number, because 53305443 - 2⁵ = 53305411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53305433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2961405 + ... + 2961422.

It is an arithmetic number, because the mean of its divisors is an integer number (12832794).

Almost surely, 2^53305443 is an apocalyptic number.

53305443 is a deficient number, since it is larger than the sum of its proper divisors (23691321).

53305443 is a wasteful number, since it uses less digits than its factorization.

53305443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922833 (or 5922830 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 53305443 is about 7301.0576631061. The cubic root of 53305443 is about 376.3487855902.

Adding to 53305443 its reverse (34450335), we get a palindrome (87755778).

The spelling of 53305443 in words is "fifty-three million, three hundred five thousand, four hundred forty-three".