51729754560 has 448 divisors, whose sum is σ = 191365632000. Its totient is φ = 11715379200.

The previous prime is 51729754547. The next prime is 51729754567. The reversal of 51729754560 is 6545792715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51729754567) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9490716 + ... + 9496164.

Almost surely, 2^51729754560 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 51729754560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95682816000).

51729754560 is an abundant number, since it is smaller than the sum of its proper divisors (139635877440).

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

51729754560 is a wasteful number, since it uses less digits than its factorization.

51729754560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5540 (or 5530 counting only the distinct ones).

The product of its (nonzero) digits is 2646000, while the sum is 51.

The spelling of 51729754560 in words is "fifty-one billion, seven hundred twenty-nine million, seven hundred fifty-four thousand, five hundred sixty".