52985 has 4 divisors (see below), whose sum is σ = 63588. Its totient is φ = 42384.

The previous prime is 52981. The next prime is 52999. The reversal of 52985 is 58925.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8464 + 44521 = 92^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 52985 - 2² = 52981 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52981) 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, 5294 + ... + 5303.

It is an arithmetic number, because the mean of its divisors is an integer number (15897).

2⁵²⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

52985 is a deficient number, since it is larger than the sum of its proper divisors (10603).

52985 is a wasteful number, since it uses less digits than its factorization.

52985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10602.

The product of its digits is 3600, while the sum is 29.

The square root of 52985 is about 230.1847084409. The cubic root of 52985 is about 37.5593135420.

The spelling of 52985 in words is "fifty-two thousand, nine hundred eighty-five".