51935995328 has 224 divisors, whose sum is σ = 125080166400. Its totient is φ = 21364439040.

The previous prime is 51935995327. The next prime is 51935995351. The reversal of 51935995328 is 82359953915.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×51935995328² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51935995327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113645276 + ... + 113645732.

It is an arithmetic number, because the mean of its divisors is an integer number (558393600).

Almost surely, 2^51935995328 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 51935995328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62540083200).

51935995328 is an abundant number, since it is smaller than the sum of its proper divisors (73144171072).

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

51935995328 is a wasteful number, since it uses less digits than its factorization.

51935995328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 664 counting only the distinct ones).

The product of its digits is 13122000, while the sum is 59.

The spelling of 51935995328 in words is "fifty-one billion, nine hundred thirty-five million, nine hundred ninety-five thousand, three hundred twenty-eight".