51271089 has 8 divisors (see below), whose sum is σ = 68494752. Its totient is φ = 34114080.

The previous prime is 51271067. The next prime is 51271127. The reversal of 51271089 is 98017215.

51271089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51271089 - 2⁵ = 51271057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51271189) 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 in 7 ways as a sum of consecutive naturals, for example, 14839 + ... + 17964.

It is an arithmetic number, because the mean of its divisors is an integer number (8561844).

Almost surely, 2^51271089 is an apocalyptic number.

It is an amenable number.

51271089 is a deficient number, since it is larger than the sum of its proper divisors (17223663).

51271089 is a wasteful number, since it uses less digits than its factorization.

51271089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33327.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 51271089 is about 7160.3832997962. The cubic root of 51271089 is about 371.4988844556.

It can be divided in two parts, 5127 and 1089, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 51271089 in words is "fifty-one million, two hundred seventy-one thousand, eighty-nine".