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55105501105 = 517648300013
BaseRepresentation
bin110011010100100010…
…110011011110110001
312021020101201111111101
4303110202303132301
51400324002013410
641152022044401
73660365013424
oct632442633661
9167211644441
1055105501105
1121408689656
12a81a879701
135272719cb5
14294a8159bb
151677bdad3a
hexcd48b37b1

55105501105 has 8 divisors (see below), whose sum is σ = 70016401512. Its totient is φ = 41491200768.

The previous prime is 55105501103. The next prime is 55105501109. The reversal of 55105501105 is 50110550155.

It can be written as a sum of positive squares in 4 ways, for example, as 787139136 + 54318361969 = 28056^2 + 233063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55105501105 - 21 = 55105501103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55105501103) 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 7 ways as a sum of consecutive naturals, for example, 324149922 + ... + 324150091.

It is an arithmetic number, because the mean of its divisors is an integer number (8752050189).

Almost surely, 255105501105 is an apocalyptic number.

It is an amenable number.

55105501105 is a deficient number, since it is larger than the sum of its proper divisors (14910900407).

55105501105 is a wasteful number, since it uses less digits than its factorization.

55105501105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648300035.

The product of its (nonzero) digits is 3125, while the sum is 28.

The spelling of 55105501105 in words is "fifty-five billion, one hundred five million, five hundred one thousand, one hundred five".

Divisors: 1 5 17 85 648300013 3241500065 11021100221 55105501105