56189145 has 16 divisors (see below), whose sum is σ = 91042560. Its totient is φ = 29587584.

The previous prime is 56189141. The next prime is 56189167. The reversal of 56189145 is 54198165.

56189145 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 56189145 - 2² = 56189141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56189141) 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, 22524 + ... + 24893.

It is an arithmetic number, because the mean of its divisors is an integer number (5690160).

Almost surely, 2^56189145 is an apocalyptic number.

It is an amenable number.

56189145 is a deficient number, since it is larger than the sum of its proper divisors (34853415).

56189145 is a wasteful number, since it uses less digits than its factorization.

56189145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47504.

The product of its digits is 43200, while the sum is 39.

The square root of 56189145 is about 7495.9419021228. The cubic root of 56189145 is about 383.0164922329.

The spelling of 56189145 in words is "fifty-six million, one hundred eighty-nine thousand, one hundred forty-five".