51033535488 has 880 divisors, whose sum is σ = 179761317120. Its totient is φ = 14284947456.

The previous prime is 51033535369. The next prime is 51033535493. The reversal of 51033535488 is 88453533015.

51033535488 is a `hidden beast` number, since 5 + 1 + 0 + 33 + 535 + 4 + 88 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 962896870 + ... + 962896922.

It is an arithmetic number, because the mean of its divisors is an integer number (204274224).

Almost surely, 2^51033535488 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 51033535488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89880658560).

51033535488 is an abundant number, since it is smaller than the sum of its proper divisors (128727781632).

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

51033535488 is a wasteful number, since it uses less digits than its factorization.

51033535488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 51033535488 in words is "fifty-one billion, thirty-three million, five hundred thirty-five thousand, four hundred eighty-eight".