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55105600055 = 5116731488737
BaseRepresentation
bin110011010100100011…
…001011101000110111
312021020101220112020012
4303110203023220313
51400324013200210
641152024130435
73660365605052
oct632443135067
9167211815205
1055105600055
1121408746a30
12a81a906a1b
13527275304c
14294a83da99
151677c0a305
hexcd48cba37

55105600055 has 16 divisors (see below), whose sum is σ = 72245477664. Its totient is φ = 40017223680.

The previous prime is 55105600027. The next prime is 55105600057. The reversal of 55105600055 is 55000650155.

It is a de Polignac number, because none of the positive numbers 2k-55105600055 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55105599994 and 55105600030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55105600057) 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 15 ways as a sum of consecutive naturals, for example, 707354 + ... + 781383.

It is an arithmetic number, because the mean of its divisors is an integer number (4515342354).

Almost surely, 255105600055 is an apocalyptic number.

55105600055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55105600055 is a deficient number, since it is larger than the sum of its proper divisors (17139877609).

55105600055 is a wasteful number, since it uses less digits than its factorization.

55105600055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489426.

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 55105600055 in words is "fifty-five billion, one hundred five million, six hundred thousand, fifty-five".

Divisors: 1 5 11 55 673 3365 7403 37015 1488737 7443685 16376107 81880535 1001920001 5009600005 11021120011 55105600055