56475187 has 2 divisors, whose sum is σ = 56475188. Its totient is φ = 56475186.

The previous prime is 56475121. The next prime is 56475193. The reversal of 56475187 is 78157465.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56475187 is a prime.

It is not a weakly prime, because it can be changed into another prime (56475487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28237593 + 28237594.

It is an arithmetic number, because the mean of its divisors is an integer number (28237594).

Almost surely, 2^56475187 is an apocalyptic number.

56475187 is a deficient number, since it is larger than the sum of its proper divisors (1).

56475187 is an equidigital number, since it uses as much as digits as its factorization.

56475187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 235200, while the sum is 43.

The square root of 56475187 is about 7514.9974717228. The cubic root of 56475187 is about 383.6653329607.

The spelling of 56475187 in words is "fifty-six million, four hundred seventy-five thousand, one hundred eighty-seven".