51006050100 has 108 divisors (see below), whose sum is σ = 160894392204. Its totient is φ = 13514941440.

The previous prime is 51006050071. The next prime is 51006050101. The reversal of 51006050100 is 105060015.

51006050100 is a `hidden beast` number, since 5 + 100 + 60 + 501 + 0 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 8092441764 + 42913608336 = 89958^2 + 207156^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51006050101) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 39189 + ... + 321788.

Almost surely, 2^51006050100 is an apocalyptic number.

51006050100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51006050100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80447196102).

51006050100 is an abundant number, since it is smaller than the sum of its proper divisors (109888342104).

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

51006050100 is a wasteful number, since it uses less digits than its factorization.

51006050100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361154 (or 361144 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The spelling of 51006050100 in words is "fifty-one billion, six million, fifty thousand, one hundred".