52552439 has 4 divisors (see below), whose sum is σ = 53670624. Its totient is φ = 51434256.

The previous prime is 52552433. The next prime is 52552441. The reversal of 52552439 is 93425525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52552439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52552399 and 52552408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52552433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559022 + ... + 559115.

It is an arithmetic number, because the mean of its divisors is an integer number (13417656).

Almost surely, 2^52552439 is an apocalyptic number.

52552439 is a deficient number, since it is larger than the sum of its proper divisors (1118185).

52552439 is a wasteful number, since it uses less digits than its factorization.

52552439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118184.

The product of its digits is 54000, while the sum is 35.

The square root of 52552439 is about 7249.3061047248. The cubic root of 52552439 is about 374.5682473929.

The spelling of 52552439 in words is "fifty-two million, five hundred fifty-two thousand, four hundred thirty-nine".