51045321100 has 18 divisors (see below), whose sum is σ = 110768347004. Its totient is φ = 20418128400.

The previous prime is 51045321059. The next prime is 51045321139. The reversal of 51045321100 is 112354015.

It is a happy 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 5 ways as a sum of consecutive naturals, for example, 255226506 + ... + 255226705.

Almost surely, 2^51045321100 is an apocalyptic number.

51045321100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51045321100 is an abundant number, since it is smaller than the sum of its proper divisors (59723025904).

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

51045321100 is a wasteful number, since it uses less digits than its factorization.

51045321100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510453225 (or 510453218 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 51045321100 its reverse (112354015), we get a palindrome (51157675115).

The spelling of 51045321100 in words is "fifty-one billion, forty-five million, three hundred twenty-one thousand, one hundred".