51051106005550 has 96 divisors (see below), whose sum is σ = 110092304784384. Its totient is φ = 17249845536000.

The previous prime is 51051106005541. The next prime is 51051106005587. The reversal of 51051106005550 is 5550060115015.

51051106005550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62239399 + ... + 63054301.

It is an arithmetic number, because the mean of its divisors is an integer number (1146794841504).

Almost surely, 2^{51051106005550} is an apocalyptic number.

51051106005550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51051106005550 is an abundant number, since it is smaller than the sum of its proper divisors (59041198778834).

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

51051106005550 is a wasteful number, since it uses less digits than its factorization.

51051106005550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817514 (or 817509 counting only the distinct ones).

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

The spelling of 51051106005550 in words is "fifty-one trillion, fifty-one billion, one hundred six million, five thousand, five hundred fifty".