51250852080 has 120 divisors (see below), whose sum is σ = 172772522208. Its totient is φ = 13614878208.

The previous prime is 51250852001. The next prime is 51250852087. The reversal of 51250852080 is 8025805215.

51250852080 is a `hidden beast` number, since 5 + 1 + 2 + 50 + 8 + 520 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51250852087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54034 + ... + 324686.

Almost surely, 2^51250852080 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 51250852080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86386261104).

51250852080 is an abundant number, since it is smaller than the sum of its proper divisors (121521670128).

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

51250852080 is a wasteful number, since it uses less digits than its factorization.

51250852080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270935 (or 270926 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The spelling of 51250852080 in words is "fifty-one billion, two hundred fifty million, eight hundred fifty-two thousand, eighty".