51106055105500 has 48 divisors (see below), whose sum is σ = 111616322729184. Its totient is φ = 20442294134400.

The previous prime is 51106055105473. The next prime is 51106055105543. The reversal of 51106055105500 is 550155060115.

It is a super-2 number, since 2×51106055105500² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156530424 + ... + 156856576.

It is an arithmetic number, because the mean of its divisors is an integer number (2325340056858).

Almost surely, 2^{51106055105500} is an apocalyptic number.

51106055105500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51106055105500 is an abundant number, since it is smaller than the sum of its proper divisors (60510267623684).

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

51106055105500 is a wasteful number, since it uses less digits than its factorization.

51106055105500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639559 (or 639547 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 51106055105500 in words is "fifty-one trillion, one hundred six billion, fifty-five million, one hundred five thousand, five hundred".