56785189 has 2 divisors, whose sum is σ = 56785190. Its totient is φ = 56785188.

The previous prime is 56785181. The next prime is 56785193. The reversal of 56785189 is 98158765.

56785189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52852900 + 3932289 = 7270^2 + 1983^2 .

It is a cyclic number.

It is not a de Polignac number, because 56785189 - 2³ = 56785181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56785181) 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 as a sum of consecutive naturals, namely, 28392594 + 28392595.

It is an arithmetic number, because the mean of its divisors is an integer number (28392595).

Almost surely, 2^56785189 is an apocalyptic number.

It is an amenable number.

56785189 is a deficient number, since it is larger than the sum of its proper divisors (1).

56785189 is an equidigital number, since it uses as much as digits as its factorization.

56785189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 49.

The square root of 56785189 is about 7535.5948006776. The cubic root of 56785189 is about 384.3660540276.

The spelling of 56785189 in words is "fifty-six million, seven hundred eighty-five thousand, one hundred eighty-nine".