51227089 has 2 divisors, whose sum is σ = 51227090. Its totient is φ = 51227088.

The previous prime is 51227087. The next prime is 51227107. The reversal of 51227089 is 98072215.

51227089 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., 27217089 + 24010000 = 5217^2 + 4900^2 .

It is a cyclic number.

It is not a de Polignac number, because 51227089 - 2¹ = 51227087 is a prime.

Together with 51227087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51227087) 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, 25613544 + 25613545.

It is an arithmetic number, because the mean of its divisors is an integer number (25613545).

Almost surely, 2^51227089 is an apocalyptic number.

It is an amenable number.

51227089 is a deficient number, since it is larger than the sum of its proper divisors (1).

51227089 is an equidigital number, since it uses as much as digits as its factorization.

51227089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 51227089 is about 7157.3101791106. The cubic root of 51227089 is about 371.3925826430.

The spelling of 51227089 in words is "fifty-one million, two hundred twenty-seven thousand, eighty-nine".