51730560 has 192 divisors, whose sum is σ = 204310080. Its totient is φ = 11814912.

The previous prime is 51730517. The next prime is 51730571. The reversal of 51730560 is 6503715.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39679 + ... + 40961.

It is an arithmetic number, because the mean of its divisors is an integer number (1064115).

Almost surely, 2^51730560 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 51730560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102155040).

51730560 is an abundant number, since it is smaller than the sum of its proper divisors (152579520).

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

51730560 is a wasteful number, since it uses less digits than its factorization.

51730560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 51730560 is about 7192.3959846493. The cubic root of 51730560 is about 372.6053273311.

The spelling of 51730560 in words is "fifty-one million, seven hundred thirty thousand, five hundred sixty".