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55110605613 = 3724340921317
BaseRepresentation
bin110011010100110110…
…010001101100101101
312021020202022211120020
4303110312101230231
51400331303334423
641152323312353
73660456263400
oct632466215455
9167222284506
1055110605613
1121410555758
12a82051b6b9
1352737b650b
14294b383d37
1516783984e3
hexcd4d91b2d

55110605613 has 48 divisors (see below), whose sum is σ = 87683492160. Its totient is φ = 30682761984.

The previous prime is 55110605609. The next prime is 55110605653. The reversal of 55110605613 is 31650601155.

It is not a de Polignac number, because 55110605613 - 22 = 55110605609 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55110605653) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2574631 + ... + 2595947.

It is an arithmetic number, because the mean of its divisors is an integer number (1826739420).

Almost surely, 255110605613 is an apocalyptic number.

It is an amenable number.

55110605613 is a deficient number, since it is larger than the sum of its proper divisors (32572886547).

55110605613 is a wasteful number, since it uses less digits than its factorization.

55110605613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21786 (or 21779 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The spelling of 55110605613 in words is "fifty-five billion, one hundred ten million, six hundred five thousand, six hundred thirteen".

Divisors: 1 3 7 21 43 49 129 147 301 409 903 1227 2107 2863 6321 8589 17587 20041 21317 52761 60123 63951 123109 149219 369327 447657 861763 916631 1044533 2585289 2749893 3133599 6416417 8718653 19249251 26155959 44914919 61030571 134744757 183091713 374902079 427213997 1124706237 1281641991 2624314553 7872943659 18370201871 55110605613