51556702115 has 8 divisors (see below), whose sum is σ = 62283265200. Its totient is φ = 40968546592.

The previous prime is 51556702091. The next prime is 51556702159. The reversal of 51556702115 is 51120765515.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51556702115 is a prime.

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, 34601069 + ... + 34602558.

It is an arithmetic number, because the mean of its divisors is an integer number (7785408150).

Almost surely, 2^51556702115 is an apocalyptic number.

51556702115 is a deficient number, since it is larger than the sum of its proper divisors (10726563085).

51556702115 is a wasteful number, since it uses less digits than its factorization.

51556702115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69203781.

The product of its (nonzero) digits is 52500, while the sum is 38.

The spelling of 51556702115 in words is "fifty-one billion, five hundred fifty-six million, seven hundred two thousand, one hundred fifteen".