51050111100 has 36 divisors (see below), whose sum is σ = 147704988984. Its totient is φ = 13613362880.

The previous prime is 51050111011. The next prime is 51050111113. The reversal of 51050111100 is 111105015.

It is a super-2 number, since 2×51050111100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 51050111100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85083219 + ... + 85083818.

Almost surely, 2^51050111100 is an apocalyptic number.

51050111100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51050111100 is an abundant number, since it is smaller than the sum of its proper divisors (96654877884).

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

51050111100 is a wasteful number, since it uses less digits than its factorization.

51050111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170167054 (or 170167047 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 51050111100 its reverse (111105015), we get a palindrome (51161216115).

The spelling of 51050111100 in words is "fifty-one billion, fifty million, one hundred eleven thousand, one hundred".