51930016100 has 18 divisors (see below), whose sum is σ = 112688135154. Its totient is φ = 20772006400.

The previous prime is 51930016081. The next prime is 51930016109. The reversal of 51930016100 is 161003915.

It can be written as a sum of positive squares in 3 ways, for example, as 6806910016 + 45123106084 = 82504^2 + 212422^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51930016100.

It is not an unprimeable number, because it can be changed into a prime (51930016109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 259649981 + ... + 259650180.

It is an arithmetic number, because the mean of its divisors is an integer number (6260451953).

Almost surely, 2^51930016100 is an apocalyptic number.

51930016100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51930016100 is an abundant number, since it is smaller than the sum of its proper divisors (60758119054).

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

51930016100 is a wasteful number, since it uses less digits than its factorization.

51930016100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519300175 (or 519300168 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 26.

The spelling of 51930016100 in words is "fifty-one billion, nine hundred thirty million, sixteen thousand, one hundred".