56765 has 4 divisors (see below), whose sum is σ = 68124. Its totient is φ = 45408.

The previous prime is 56747. The next prime is 56767.

56765 is nontrivially palindromic in base 10.

56765 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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 17956 + 38809 = 134^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 56765 - 2⁶ = 56701 is a prime.

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

It is a Duffinian number.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56767) 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, 5672 + ... + 5681.

It is an arithmetic number, because the mean of its divisors is an integer number (17031).

2⁵⁶⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

56765 is a deficient number, since it is larger than the sum of its proper divisors (11359).

56765 is a wasteful number, since it uses less digits than its factorization.

56765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11358.

The product of its digits is 6300, while the sum is 29.

The square root of 56765 is about 238.2540660723. The cubic root of 56765 is about 38.4320497042.

The spelling of 56765 in words is "fifty-six thousand, seven hundred sixty-five".