51159854592 has 480 divisors, whose sum is σ = 192118417920. Its totient is φ = 12708495360.

The previous prime is 51159854549. The next prime is 51159854597. The reversal of 51159854592 is 29545895115.

51159854592 is a `hidden beast` number, since 5 + 1 + 1 + 5 + 9 + 8 + 545 + 92 = 666.

51159854592 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51159854597) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8157634 + ... + 8163902.

It is an arithmetic number, because the mean of its divisors is an integer number (400246704).

Almost surely, 2^51159854592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51159854592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96059208960).

51159854592 is an abundant number, since it is smaller than the sum of its proper divisors (140958563328).

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

51159854592 is a wasteful number, since it uses less digits than its factorization.

51159854592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6334 (or 6315 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 54.

The spelling of 51159854592 in words is "fifty-one billion, one hundred fifty-nine million, eight hundred fifty-four thousand, five hundred ninety-two".