51289017 has 16 divisors (see below), whose sum is σ = 77978880. Its totient is φ = 29705472.

The previous prime is 51289013. The next prime is 51289019. The reversal of 51289017 is 71098215.

It is not a de Polignac number, because 51289017 - 2² = 51289013 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51289013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38017 + ... + 39342.

It is an arithmetic number, because the mean of its divisors is an integer number (4873680).

Almost surely, 2^51289017 is an apocalyptic number.

It is an amenable number.

51289017 is a deficient number, since it is larger than the sum of its proper divisors (26689863).

51289017 is a wasteful number, since it uses less digits than its factorization.

51289017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77392.

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

The square root of 51289017 is about 7161.6350786674. The cubic root of 51289017 is about 371.5421801737.

The spelling of 51289017 in words is "fifty-one million, two hundred eighty-nine thousand, seventeen".