56617 has 4 divisors (see below), whose sum is σ = 61776.
Its totient is φ = 51460.
The previous prime is 56611. The next prime is 56629. The reversal of 56617 is 71665.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 56617 - 27 = 56489 is a prime.
It is a pancake number, because a pancake can be divided into 56617 parts by 336 straight cuts.
It is a junction number, because it is equal to n+sod(n) for n = 56591 and 56600.
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, 2563 + ... + 2584.
It is an arithmetic number, because the mean of its divisors is an integer number (15444).
256617 is an apocalyptic number.
It is an amenable number.
56617 is a deficient number, since it is larger than the sum of its proper divisors (5159).
56617 is a wasteful number, since it uses less digits than its factorization.
56617 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5158.
The product of its digits is 1260, while the sum is 25.
The square root of 56617 is about 237.9432705499.
The cubic root of 56617 is about 38.3986201038.
The spelling of 56617 in words is "fifty-six thousand, six hundred seventeen".