56065 has 4 divisors (see below), whose sum is σ = 67284. Its totient is φ = 44848.

The previous prime is 56053. The next prime is 56081.

56065 is nontrivially palindromic in base 10.

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 9409 + 46656 = 97^2 + 216^2 .

It is a cyclic number.

It is not a de Polignac number, because 56065 - 2¹⁵ = 23297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 5602 + ... + 5611.

It is an arithmetic number, because the mean of its divisors is an integer number (16821).

It is a Proth number, since it is equal to 219 ⋅ 2⁸ + 1 and 219 < 2⁸.

2⁵⁶⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

56065 is a deficient number, since it is larger than the sum of its proper divisors (11219).

56065 is a wasteful number, since it uses less digits than its factorization.

56065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11218.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 56065 is about 236.7804890611. The cubic root of 56065 is about 38.2734203757.

Adding to 56065 its product of nonzero digits (900), we get a palindrome (56965).

It can be divided in two parts, 560 and 65, that added together give a 4-th power (625 = 5⁴).

The spelling of 56065 in words is "fifty-six thousand, sixty-five".