56066109 has 16 divisors (see below), whose sum is σ = 83449344. Its totient is φ = 33188400.

The previous prime is 56066089. The next prime is 56066141. The reversal of 56066109 is 90166065.

56066109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56066109 - 2⁷ = 56065981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56066109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56066189) 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 15 ways as a sum of consecutive naturals, for example, 18337 + ... + 21174.

It is an arithmetic number, because the mean of its divisors is an integer number (5215584).

Almost surely, 2^56066109 is an apocalyptic number.

It is an amenable number.

56066109 is a deficient number, since it is larger than the sum of its proper divisors (27383235).

56066109 is a wasteful number, since it uses less digits than its factorization.

56066109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39568.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 56066109 is about 7487.7305640628. The cubic root of 56066109 is about 382.7367273124.

The spelling of 56066109 in words is "fifty-six million, sixty-six thousand, one hundred nine".