51005510508 has 24 divisors (see below), whose sum is σ = 119331937648. Its totient is φ = 16956254016.

The previous prime is 51005510497. The next prime is 51005510513. The reversal of 51005510508 is 80501550015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5693191 + ... + 5702142.

Almost surely, 2^51005510508 is an apocalyptic number.

It is an amenable number.

51005510508 is an abundant number, since it is smaller than the sum of its proper divisors (68326427140).

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

51005510508 is a wasteful number, since it uses less digits than its factorization.

51005510508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11395713 (or 11395711 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 30.

The spelling of 51005510508 in words is "fifty-one billion, five million, five hundred ten thousand, five hundred eight".