51006051055556 has 48 divisors (see below), whose sum is σ = 94254031872000. Its totient is φ = 24084888792480.

The previous prime is 51006051055481. The next prime is 51006051055567. The reversal of 51006051055556 is 65555015060015.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30384365 + ... + 32019083.

It is an arithmetic number, because the mean of its divisors is an integer number (1963625664000).

Almost surely, 2^{51006051055556} is an apocalyptic number.

It is an amenable number.

51006051055556 is a deficient number, since it is larger than the sum of its proper divisors (43247980816444).

51006051055556 is a wasteful number, since it uses less digits than its factorization.

51006051055556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636032 (or 1636030 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 44.

The spelling of 51006051055556 in words is "fifty-one trillion, six billion, fifty-one million, fifty-five thousand, five hundred fifty-six".