53443233 has 12 divisors (see below), whose sum is σ = 80055248. Its totient is φ = 35628660.

The previous prime is 53443231. The next prime is 53443249. The reversal of 53443233 is 33234435.

It is a happy number.

It is not a de Polignac number, because 53443233 - 2¹ = 53443231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53443197 and 53443206.

It is not an unprimeable number, because it can be changed into a prime (53443231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109723 + ... + 110208.

Almost surely, 2^53443233 is an apocalyptic number.

It is an amenable number.

53443233 is a deficient number, since it is larger than the sum of its proper divisors (26612015).

53443233 is an equidigital number, since it uses as much as digits as its factorization.

53443233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219946 (or 219934 counting only the distinct ones).

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

The square root of 53443233 is about 7310.4878770161. The cubic root of 53443233 is about 376.6727830300.

Adding to 53443233 its reverse (33234435), we get a palindrome (86677668).

The spelling of 53443233 in words is "fifty-three million, four hundred forty-three thousand, two hundred thirty-three".