51510566105 has 8 divisors (see below), whose sum is σ = 62424686664. Its totient is φ = 40800448000.

The previous prime is 51510566087. The next prime is 51510566119. The reversal of 51510566105 is 50166501515.

It can be written as a sum of positive squares in 4 ways, for example, as 26071592089 + 25438974016 = 161467^2 + 159496^2 .

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

It is not a de Polignac number, because 51510566105 - 2¹⁰ = 51510565081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51000056 + ... + 51001065.

It is an arithmetic number, because the mean of its divisors is an integer number (7803085833).

Almost surely, 2^51510566105 is an apocalyptic number.

It is an amenable number.

51510566105 is a deficient number, since it is larger than the sum of its proper divisors (10914120559).

51510566105 is a wasteful number, since it uses less digits than its factorization.

51510566105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102001227.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 51510566105 in words is "fifty-one billion, five hundred ten million, five hundred sixty-six thousand, one hundred five".