51555679596 has 36 divisors (see below), whose sum is σ = 130358865000. Its totient is φ = 17180273088.

The previous prime is 51555679577. The next prime is 51555679603. The reversal of 51555679596 is 69597655515.

It is a happy number.

51555679596 is a `hidden beast` number, since 5 + 1 + 5 + 556 + 79 + 5 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 78681 + ... + 330608.

Almost surely, 2^51555679596 is an apocalyptic number.

It is an amenable number.

51555679596 is an abundant number, since it is smaller than the sum of its proper divisors (78803185404).

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

51555679596 is a wasteful number, since it uses less digits than its factorization.

51555679596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412798 (or 412793 counting only the distinct ones).

The product of its digits is 63787500, while the sum is 63.

The spelling of 51555679596 in words is "fifty-one billion, five hundred fifty-five million, six hundred seventy-nine thousand, five hundred ninety-six".