56228189 has 2 divisors, whose sum is σ = 56228190. Its totient is φ = 56228188.

The previous prime is 56228173. The next prime is 56228191. The reversal of 56228189 is 98182265.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54140164 + 2088025 = 7358^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 56228189 - 2⁴ = 56228173 is a prime.

It is a super-3 number, since 3×56228189³ (a number of 24 digits) contains 333 as substring.

Together with 56228191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56228119) 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, 28114094 + 28114095.

It is an arithmetic number, because the mean of its divisors is an integer number (28114095).

Almost surely, 2^56228189 is an apocalyptic number.

It is an amenable number.

56228189 is a deficient number, since it is larger than the sum of its proper divisors (1).

56228189 is an equidigital number, since it uses as much as digits as its factorization.

56228189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The square root of 56228189 is about 7498.5457923520. The cubic root of 56228189 is about 383.1051869056.

The spelling of 56228189 in words is "fifty-six million, two hundred twenty-eight thousand, one hundred eighty-nine".