51408589 has 2 divisors, whose sum is σ = 51408590. Its totient is φ = 51408588.

The previous prime is 51408587. The next prime is 51408649. The reversal of 51408589 is 98580415.

51408589 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., 50651689 + 756900 = 7117^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 51408589 - 2¹ = 51408587 is a prime.

Together with 51408587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51408583) 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, 25704294 + 25704295.

It is an arithmetic number, because the mean of its divisors is an integer number (25704295).

Almost surely, 2^51408589 is an apocalyptic number.

It is an amenable number.

51408589 is a deficient number, since it is larger than the sum of its proper divisors (1).

51408589 is an equidigital number, since it uses as much as digits as its factorization.

51408589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 51408589 is about 7169.9783123800. The cubic root of 51408589 is about 371.8306861397.

The spelling of 51408589 in words is "fifty-one million, four hundred eight thousand, five hundred eighty-nine".