51055605505 has 8 divisors (see below), whose sum is σ = 63930497472. Its totient is φ = 39068637168.

The previous prime is 51055605439. The next prime is 51055605529. The reversal of 51055605505 is 50550655015.

51055605505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51055605505 - 2¹⁷ = 51055474433 is a prime.

It is a Duffinian 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, 221980779 + ... + 221981008.

It is an arithmetic number, because the mean of its divisors is an integer number (7991312184).

Almost surely, 2^51055605505 is an apocalyptic number.

It is an amenable number.

51055605505 is a deficient number, since it is larger than the sum of its proper divisors (12874891967).

51055605505 is a wasteful number, since it uses less digits than its factorization.

51055605505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443961815.

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 51055605505 in words is "fifty-one billion, fifty-five million, six hundred five thousand, five hundred five".