51576828750 has 240 divisors, whose sum is σ = 142811285760. Its totient is φ = 13445640000.

The previous prime is 51576828707. The next prime is 51576828757. The reversal of 51576828750 is 5782867515.

51576828750 is a `hidden beast` number, since 515 + 76 + 8 + 2 + 8 + 7 + 50 = 666.

51576828750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51576828757) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 116426029 + ... + 116426471.

It is an arithmetic number, because the mean of its divisors is an integer number (595047024).

Almost surely, 2^51576828750 is an apocalyptic number.

51576828750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51576828750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71405642880).

51576828750 is an abundant number, since it is smaller than the sum of its proper divisors (91234457010).

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

51576828750 is a wasteful number, since it uses less digits than its factorization.

51576828750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 54.

The spelling of 51576828750 in words is "fifty-one billion, five hundred seventy-six million, eight hundred twenty-eight thousand, seven hundred fifty".