51551106510051 has 64 divisors (see below), whose sum is σ = 81005423155200. Its totient is φ = 32289451200000.

The previous prime is 51551106510041. The next prime is 51551106510161. The reversal of 51551106510051 is 15001560115515.

51551106510051 is a `hidden beast` number, since 5 + 1 + 551 + 1 + 0 + 6 + 51 + 0 + 0 + 51 = 666.

It is not a de Polignac number, because 51551106510051 - 2²⁵ = 51551072955619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51551106509988 and 51551106510015.

It is not an unprimeable number, because it can be changed into a prime (51551106510041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 875186701 + ... + 875245601.

It is an arithmetic number, because the mean of its divisors is an integer number (1265709736800).

Almost surely, 2^{51551106510051} is an apocalyptic number.

51551106510051 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51551106510051 is a deficient number, since it is larger than the sum of its proper divisors (29454316645149).

51551106510051 is a wasteful number, since it uses less digits than its factorization.

51551106510051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62217 (or 62211 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 36.

Adding to 51551106510051 its reverse (15001560115515), we get a palindrome (66552666625566).

The spelling of 51551106510051 in words is "fifty-one trillion, five hundred fifty-one billion, one hundred six million, five hundred ten thousand, fifty-one".