53323443 has 24 divisors (see below), whose sum is σ = 81536000. Its totient is φ = 33487344.

The previous prime is 53323423. The next prime is 53323447. The reversal of 53323443 is 34432335.

It is a happy number.

It is not a de Polignac number, because 53323443 - 2⁸ = 53323187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53323447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33246 + ... + 34812.

Almost surely, 2^53323443 is an apocalyptic number.

53323443 is a deficient number, since it is larger than the sum of its proper divisors (28212557).

53323443 is a wasteful number, since it uses less digits than its factorization.

53323443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791 (or 1788 counting only the distinct ones).

The product of its digits is 12960, while the sum is 27.

The square root of 53323443 is about 7302.2902571727. The cubic root of 53323443 is about 376.3911422140.

Adding to 53323443 its reverse (34432335), we get a palindrome (87755778).

The spelling of 53323443 in words is "fifty-three million, three hundred twenty-three thousand, four hundred forty-three".