56543845 has 16 divisors (see below), whose sum is σ = 71373312. Its totient is φ = 42943680.

The previous prime is 56543827. The next prime is 56543849. The reversal of 56543845 is 54834565.

It is not a de Polignac number, because 56543845 - 2⁵ = 56543813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56543798 and 56543807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56543849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4774 + ... + 11656.

It is an arithmetic number, because the mean of its divisors is an integer number (4460832).

Almost surely, 2^56543845 is an apocalyptic number.

It is an amenable number.

56543845 is a deficient number, since it is larger than the sum of its proper divisors (14829467).

56543845 is a wasteful number, since it uses less digits than its factorization.

56543845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972.

The product of its digits is 288000, while the sum is 40.

The square root of 56543845 is about 7519.5641496034. The cubic root of 56543845 is about 383.8207465050.

The spelling of 56543845 in words is "fifty-six million, five hundred forty-three thousand, eight hundred forty-five".