Search a number
52161 = 317387

52161 has 4 divisors (see below), whose sum is σ = 69552. Its totient is φ = 34772.

The previous prime is 52153. The next prime is 52163. The reversal of 52161 is 16125.

Adding to 52161 its reverse (16125), we get a palindrome (68286).

52161 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52161 - 23 = 52153 is a prime.

It is a D-number.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52161.

It is not an unprimeable number, because it can be changed into a prime (52163) 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, 8691 + ... + 8696.

It is an arithmetic number, because the mean of its divisors is an integer number (17388).

252161 is an apocalyptic number.

It is an amenable number.

52161 is a deficient number, since it is larger than the sum of its proper divisors (17391).

52161 is a wasteful number, since it uses less digits than its factorization.

52161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17390.

The product of its digits is 60, while the sum is 15.

The square root of 52161 is about 228.3878280469. The cubic root of 52161 is about 37.3635933096.

The spelling of 52161 in words is "fifty-two thousand, one hundred sixty-one".

Divisors: 1 3 17387 52161