52505 has 4 divisors (see below), whose sum is σ = 63012. Its totient is φ = 42000.

The previous prime is 52501. The next prime is 52511. The reversal of 52505 is 50525.

It is a happy number.

52505 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 can be written as a sum of positive squares in 2 ways, for example, as 17161 + 35344 = 131^2 + 188^2 .

It is not a de Polignac number, because 52505 - 2² = 52501 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52501) 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, 5246 + ... + 5255.

It is an arithmetic number, because the mean of its divisors is an integer number (15753).

2⁵²⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

52505 is a deficient number, since it is larger than the sum of its proper divisors (10507).

52505 is a wasteful number, since it uses less digits than its factorization.

52505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10506.

The product of its (nonzero) digits is 250, while the sum is 17.

The square root of 52505 is about 229.1396953825. The cubic root of 52505 is about 37.4455506083.

The spelling of 52505 in words is "fifty-two thousand, five hundred five".