56717 has 4 divisors (see below), whose sum is σ = 58080.
Its totient is φ = 55356.
The previous prime is 56713. The next prime is 56731. The reversal of 56717 is 71765.
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 56717 - 22 = 56713 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (56711) 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, 617 + ... + 702.
It is an arithmetic number, because the mean of its divisors is an integer number (14520).
256717 is an apocalyptic number.
It is an amenable number.
56717 is a deficient number, since it is larger than the sum of its proper divisors (1363).
56717 is a wasteful number, since it uses less digits than its factorization.
56717 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1362.
The product of its digits is 1470, while the sum is 26.
The square root of 56717 is about 238.1533119652.
The cubic root of 56717 is about 38.4212140449.
The spelling of 56717 in words is "fifty-six thousand, seven hundred seventeen".