51055105555 has 8 divisors (see below), whose sum is σ = 61278580944. Its totient is φ = 40835781600.

The previous prime is 51055105537. The next prime is 51055105579. The reversal of 51055105555 is 55550155015.

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

It is not a de Polignac number, because 51055105555 - 2¹³ = 51055097363 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 1010736 + ... + 1060045.

It is an arithmetic number, because the mean of its divisors is an integer number (7659822618).

Almost surely, 2^51055105555 is an apocalyptic number.

51055105555 is a deficient number, since it is larger than the sum of its proper divisors (10223475389).

51055105555 is a wasteful number, since it uses less digits than its factorization.

51055105555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075717.

The product of its (nonzero) digits is 78125, while the sum is 37.

The spelling of 51055105555 in words is "fifty-one billion, fifty-five million, one hundred five thousand, five hundred fifty-five".