51151055556 has 48 divisors (see below), whose sum is σ = 119720676096. Its totient is φ = 16997834784.

The previous prime is 51151055539. The next prime is 51151055609. The reversal of 51151055556 is 65555015115.

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 15 ways as a sum of consecutive naturals, for example, 5539015 + ... + 5548241.

It is an arithmetic number, because the mean of its divisors is an integer number (2494180752).

Almost surely, 2^51151055556 is an apocalyptic number.

It is an amenable number.

51151055556 is an abundant number, since it is smaller than the sum of its proper divisors (68569620540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51151055556 is a wasteful number, since it uses less digits than its factorization.

51151055556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10608 (or 10606 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 51151055556 in words is "fifty-one billion, one hundred fifty-one million, fifty-five thousand, five hundred fifty-six".