51040889 has 2 divisors, whose sum is σ = 51040890. Its totient is φ = 51040888.

The previous prime is 51040879. The next prime is 51040931. The reversal of 51040889 is 98804015.

51040889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35200489 + 15840400 = 5933^2 + 3980^2 .

It is a cyclic number.

It is not a de Polignac number, because 51040889 - 2²⁴ = 34263673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51040879) 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, 25520444 + 25520445.

It is an arithmetic number, because the mean of its divisors is an integer number (25520445).

Almost surely, 2^51040889 is an apocalyptic number.

It is an amenable number.

51040889 is a deficient number, since it is larger than the sum of its proper divisors (1).

51040889 is an equidigital number, since it uses as much as digits as its factorization.

51040889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 51040889 is about 7144.2906575811. The cubic root of 51040889 is about 370.9420576318.

The spelling of 51040889 in words is "fifty-one million, forty thousand, eight hundred eighty-nine".