53443223 has 4 divisors (see below), whose sum is σ = 56586960. Its totient is φ = 50299488.

The previous prime is 53443211. The next prime is 53443231. The reversal of 53443223 is 32234435.

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 53443223 - 2¹⁰ = 53442199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53443192 and 53443201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53440223) 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 3 ways as a sum of consecutive naturals, for example, 1571843 + ... + 1571876.

It is an arithmetic number, because the mean of its divisors is an integer number (14146740).

Almost surely, 2^53443223 is an apocalyptic number.

53443223 is a deficient number, since it is larger than the sum of its proper divisors (3143737).

53443223 is a wasteful number, since it uses less digits than its factorization.

53443223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3143736.

The product of its digits is 8640, while the sum is 26.

The square root of 53443223 is about 7310.4871930672. The cubic root of 53443223 is about 376.6727595363.

Adding to 53443223 its reverse (32234435), we get a palindrome (85677658).

The spelling of 53443223 in words is "fifty-three million, four hundred forty-three thousand, two hundred twenty-three".