56641 has 4 divisors (see below), whose sum is σ = 61012. Its totient is φ = 52272.

The previous prime is 56633. The next prime is 56659. The reversal of 56641 is 14665.

56641 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 38416 + 18225 = 196^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 56641 - 2³ = 56633 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (56611) 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, 2166 + ... + 2191.

It is an arithmetic number, because the mean of its divisors is an integer number (15253).

2⁵⁶⁶⁴¹ is an apocalyptic number.

It is an amenable number.

56641 is a deficient number, since it is larger than the sum of its proper divisors (4371).

56641 is a wasteful number, since it uses less digits than its factorization.

56641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370.

The product of its digits is 720, while the sum is 22.

The square root of 56641 is about 237.9936973955. The cubic root of 56641 is about 38.4040450745.

It can be divided in two parts, 5664 and 1, that added together give a palindrome (5665).

The spelling of 56641 in words is "fifty-six thousand, six hundred forty-one".