56543617 has 8 divisors (see below), whose sum is σ = 60953256. Its totient is φ = 52142592.

The previous prime is 56543593. The next prime is 56543621. The reversal of 56543617 is 71634565.

56543617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 53361 + 56490256 = 231^2 + 7516^2 .

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 56543617 - 2⁷ = 56543489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56543647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19953 + ... + 22609.

It is an arithmetic number, because the mean of its divisors is an integer number (7619157).

Almost surely, 2^56543617 is an apocalyptic number.

It is an amenable number.

56543617 is a deficient number, since it is larger than the sum of its proper divisors (4409639).

56543617 is a wasteful number, since it uses less digits than its factorization.

56543617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307.

The product of its digits is 75600, while the sum is 37.

The square root of 56543617 is about 7519.5489891349. The cubic root of 56543617 is about 383.8202306148.

The spelling of 56543617 in words is "fifty-six million, five hundred forty-three thousand, six hundred seventeen".