52739 has 4 divisors (see below), whose sum is σ = 55056. Its totient is φ = 50424.

The previous prime is 52733. The next prime is 52747. The reversal of 52739 is 93725.

52739 is nontrivially palindromic in base 9.

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-52739 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (52733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124 + ... + 1169.

It is an arithmetic number, because the mean of its divisors is an integer number (13764).

2⁵²⁷³⁹ is an apocalyptic number.

52739 is a deficient number, since it is larger than the sum of its proper divisors (2317).

52739 is a wasteful number, since it uses less digits than its factorization.

52739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316.

The product of its digits is 1890, while the sum is 26.

The square root of 52739 is about 229.6497332896. The cubic root of 52739 is about 37.5010962642.

It can be divided in two parts, 5 and 2739, that multiplied together give a triangular number (13695 = T₁₆₅).

The spelling of 52739 in words is "fifty-two thousand, seven hundred thirty-nine".