56945 has 8 divisors (see below), whose sum is σ = 78144. Its totient is φ = 39024.

The previous prime is 56941. The next prime is 56951. The reversal of 56945 is 54965.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56945 - 2² = 56941 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779 + ... + 848.

It is an arithmetic number, because the mean of its divisors is an integer number (9768).

2⁵⁶⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

56945 is a deficient number, since it is larger than the sum of its proper divisors (21199).

56945 is a wasteful number, since it uses less digits than its factorization.

56945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639.

The product of its digits is 5400, while the sum is 29.

The square root of 56945 is about 238.6315151023. The cubic root of 56945 is about 38.4726291093.

It can be divided in two parts, 56 and 945, that added together give a palindrome (1001).

The spelling of 56945 in words is "fifty-six thousand, nine hundred forty-five".