56112389 has 2 divisors, whose sum is σ = 56112390. Its totient is φ = 56112388.

The previous prime is 56112379. The next prime is 56112403. The reversal of 56112389 is 98321165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36602500 + 19509889 = 6050^2 + 4417^2 .

It is a cyclic number.

It is not a de Polignac number, because 56112389 - 2⁴ = 56112373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56112349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28056194 + 28056195.

It is an arithmetic number, because the mean of its divisors is an integer number (28056195).

Almost surely, 2^56112389 is an apocalyptic number.

It is an amenable number.

56112389 is a deficient number, since it is larger than the sum of its proper divisors (1).

56112389 is an equidigital number, since it uses as much as digits as its factorization.

56112389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 56112389 is about 7490.8203155596. The cubic root of 56112389 is about 382.8420088839.

It can be divided in two parts, 5611 and 2389, that added together give a cube (8000 = 20³).

The spelling of 56112389 in words is "fifty-six million, one hundred twelve thousand, three hundred eighty-nine".