52052239 has 4 divisors (see below), whose sum is σ = 52189960. Its totient is φ = 51914520.

The previous prime is 52052227. The next prime is 52052261. The reversal of 52052239 is 93225025.

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 52052239 - 2²⁵ = 18497807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52052279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68292 + ... + 69049.

It is an arithmetic number, because the mean of its divisors is an integer number (13047490).

Almost surely, 2^52052239 is an apocalyptic number.

52052239 is a deficient number, since it is larger than the sum of its proper divisors (137721).

52052239 is a wasteful number, since it uses less digits than its factorization.

52052239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137720.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 52052239 is about 7214.7237646358. The cubic root of 52052239 is about 373.3760627290.

The spelling of 52052239 in words is "fifty-two million, fifty-two thousand, two hundred thirty-nine".