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51440676523055 = 5172971283286049
BaseRepresentation
bin10111011001000111101110…
…10000000100110000101111
320202010200101012012112021122
423230203313100010300233
523220301001142214210
6301223304235051155
713556315630003321
oct1354436720046057
9222120335175248
1051440676523055
1115432960929186
12592966a5a0abb
132291ab15bb8b1
14c9ba561a7611
155e3153d8cb55
hex2ec8f7404c2f

51440676523055 has 48 divisors (see below), whose sum is σ = 66301396711200. Its totient is φ = 38302495408128.

The previous prime is 51440676523001. The next prime is 51440676523057. The reversal of 51440676523055 is 55032567604415.

51440676523055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51440676523055 - 28 = 51440676522799 is a prime.

It is a super-3 number, since 3×514406765230553 (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 51440676522988 and 51440676523006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51440676523057) by changing a digit.

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, 179688671 + ... + 179974719.

It is an arithmetic number, because the mean of its divisors is an integer number (1381279098150).

Almost surely, 251440676523055 is an apocalyptic number.

51440676523055 is a deficient number, since it is larger than the sum of its proper divisors (14860720188145).

51440676523055 is a wasteful number, since it uses less digits than its factorization.

51440676523055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287468 (or 287451 counting only the distinct ones).

The product of its (nonzero) digits is 15120000, while the sum is 53.

The spelling of 51440676523055 in words is "fifty-one trillion, four hundred forty billion, six hundred seventy-six million, five hundred twenty-three thousand, fifty-five".

Divisors: 1 5 17 85 97 289 485 1283 1445 1649 6415 8245 21811 28033 109055 124451 140165 286049 370787 622255 1430245 1853935 2115667 4862833 10578335 24314165 27746753 35966339 82668161 138733765 179831695 367000867 413340805 471694801 1835004335 2358474005 6239014739 8018811617 31195073695 35599084099 40094058085 106063250563 177995420495 530316252815 605184429683 3025922148415 10288135304611 51440676523055