51445089 has 24 divisors (see below), whose sum is σ = 80051712. Its totient is φ = 31743360.

The previous prime is 51445067. The next prime is 51445091. The reversal of 51445089 is 98054415.

51445089 is a `hidden beast` number, since 5 + 144 + 508 + 9 = 666.

51445089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51445089 - 2⁷ = 51444961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51445019) 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 23 ways as a sum of consecutive naturals, for example, 2409 + ... + 10425.

It is an arithmetic number, because the mean of its divisors is an integer number (3335488).

Almost surely, 2^51445089 is an apocalyptic number.

It is an amenable number.

51445089 is a deficient number, since it is larger than the sum of its proper divisors (28606623).

51445089 is a wasteful number, since it uses less digits than its factorization.

51445089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8077 (or 8074 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 51445089 is about 7172.5231961981. The cubic root of 51445089 is about 371.9186650137.

The spelling of 51445089 in words is "fifty-one million, four hundred forty-five thousand, eighty-nine".