52644439 has 4 divisors (see below), whose sum is σ = 52673400. Its totient is φ = 52615480.

The previous prime is 52644413. The next prime is 52644457. The reversal of 52644439 is 93444625.

It is a happy number.

52644439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52644439 - 2⁵ = 52644407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52644398 and 52644407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52644139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11557 + ... + 15454.

It is an arithmetic number, because the mean of its divisors is an integer number (13168350).

Almost surely, 2^52644439 is an apocalyptic number.

52644439 is a deficient number, since it is larger than the sum of its proper divisors (28961).

52644439 is a wasteful number, since it uses less digits than its factorization.

52644439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28960.

The product of its digits is 103680, while the sum is 37.

The square root of 52644439 is about 7255.6487649279. The cubic root of 52644439 is about 374.7866970650.

The spelling of 52644439 in words is "fifty-two million, six hundred forty-four thousand, four hundred thirty-nine".