51510615106 has 8 divisors (see below), whose sum is σ = 79150457484. Its totient is φ = 25127129280.

The previous prime is 51510615097. The next prime is 51510615187. The reversal of 51510615106 is 60151601515.

It can be written as a sum of positive squares in 2 ways, for example, as 43249441225 + 8261173881 = 207965^2 + 90891^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314089035 + ... + 314089198.

Almost surely, 2^51510615106 is an apocalyptic number.

51510615106 is a deficient number, since it is larger than the sum of its proper divisors (27639842378).

51510615106 is a wasteful number, since it uses less digits than its factorization.

51510615106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628178276.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 51510615106 in words is "fifty-one billion, five hundred ten million, six hundred fifteen thousand, one hundred six".