56167889 has 2 divisors, whose sum is σ = 56167890. Its totient is φ = 56167888.

The previous prime is 56167861. The next prime is 56167897. The reversal of 56167889 is 98876165.

It is a happy number.

56167889 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., 41667025 + 14500864 = 6455^2 + 3808^2 .

It is a cyclic number.

It is not a de Polignac number, because 56167889 - 2²⁰ = 55119313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56167829) 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, 28083944 + 28083945.

It is an arithmetic number, because the mean of its divisors is an integer number (28083945).

Almost surely, 2^56167889 is an apocalyptic number.

It is an amenable number.

56167889 is a deficient number, since it is larger than the sum of its proper divisors (1).

56167889 is an equidigital number, since it uses as much as digits as its factorization.

56167889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The square root of 56167889 is about 7494.5239341802. The cubic root of 56167889 is about 382.9681885651.

The spelling of 56167889 in words is "fifty-six million, one hundred sixty-seven thousand, eight hundred eighty-nine".