51559677752 has 32 divisors (see below), whose sum is σ = 105499033200. Its totient is φ = 23428204800.

The previous prime is 51559677749. The next prime is 51559677773. The reversal of 51559677752 is 25777695515.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51559677691 and 51559677700.

It is a congruent 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, 162602 + ... + 359942.

Almost surely, 2^51559677752 is an apocalyptic number.

It is an amenable number.

51559677752 is an abundant number, since it is smaller than the sum of its proper divisors (53939355448).

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

51559677752 is a wasteful number, since it uses less digits than its factorization.

51559677752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200327 (or 200323 counting only the distinct ones).

The product of its digits is 23152500, while the sum is 59.

The spelling of 51559677752 in words is "fifty-one billion, five hundred fifty-nine million, six hundred seventy-seven thousand, seven hundred fifty-two".