56545 has 8 divisors (see below), whose sum is σ = 69696. Its totient is φ = 44016.
The previous prime is 56543. The next prime is 56569. The reversal of 56545 is 54565.
56545 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
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 56545 - 21 = 56543 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (56543) by changing a digit.
It is an upside-down number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84 + ... + 346.
It is an arithmetic number, because the mean of its divisors is an integer number (8712).
256545 is an apocalyptic number.
It is an amenable number.
56545 is a deficient number, since it is larger than the sum of its proper divisors (13151).
56545 is a wasteful number, since it uses less digits than its factorization.
56545 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 311.
The product of its digits is 3000, while the sum is 25.
The square root of 56545 is about 237.7919258512. The cubic root of 56545 is about 38.3823359875.
It can be divided in two parts, 565 and 45, that multiplied together give a triangular number (25425 = T225).
The spelling of 56545 in words is "fifty-six thousand, five hundred forty-five".
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