51343556000 has 192 divisors, whose sum is σ = 138197404800. Its totient is φ = 18592000000.

The previous prime is 51343555987. The next prime is 51343556027. The reversal of 51343556000 is 65534315.

51343556000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11041676 + ... + 11046324.

It is an arithmetic number, because the mean of its divisors is an integer number (719778150).

Almost surely, 2^51343556000 is an apocalyptic number.

51343556000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51343556000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69098702400).

51343556000 is an abundant number, since it is smaller than the sum of its proper divisors (86853848800).

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

51343556000 is a wasteful number, since it uses less digits than its factorization.

51343556000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4936 (or 4918 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The spelling of 51343556000 in words is "fifty-one billion, three hundred forty-three million, five hundred fifty-six thousand".