51518159 has 12 divisors (see below), whose sum is σ = 65378088. Its totient is φ = 40143600.

The previous prime is 51518153. The next prime is 51518161. The reversal of 51518159 is 95181515.

51518159 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 51518159 - 2⁸ = 51517903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51518153) 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 11 ways as a sum of consecutive naturals, for example, 47252 + ... + 48329.

It is an arithmetic number, because the mean of its divisors is an integer number (5448174).

Almost surely, 2^51518159 is an apocalyptic number.

51518159 is a deficient number, since it is larger than the sum of its proper divisors (13859929).

51518159 is a wasteful number, since it uses less digits than its factorization.

51518159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95606 (or 95599 counting only the distinct ones).

The product of its digits is 9000, while the sum is 35.

The square root of 51518159 is about 7177.6151331762. The cubic root of 51518159 is about 372.0946665266.

The spelling of 51518159 in words is "fifty-one million, five hundred eighteen thousand, one hundred fifty-nine".