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55081105 = 5175631151
BaseRepresentation
bin1101001000011…
…1100010010001
310211122102001221
43102013202101
5103100043410
65244325041
71236116212
oct322074221
9124572057
1055081105
1129101282
1216543781
13b547091
14745b409
154c804da
hex3487891

55081105 has 16 divisors (see below), whose sum is σ = 70170624. Its totient is φ = 41363200.

The previous prime is 55081099. The next prime is 55081127. The reversal of 55081105 is 50118055.

It is not a de Polignac number, because 55081105 - 23 = 55081097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55081105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47280 + ... + 48430.

It is an arithmetic number, because the mean of its divisors is an integer number (4385664).

Almost surely, 255081105 is an apocalyptic number.

It is an amenable number.

55081105 is a deficient number, since it is larger than the sum of its proper divisors (15089519).

55081105 is a wasteful number, since it uses less digits than its factorization.

55081105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 55081105 is about 7421.6645707011. The cubic root of 55081105 is about 380.4820866652.

The spelling of 55081105 in words is "fifty-five million, eighty-one thousand, one hundred five".

Divisors: 1 5 17 85 563 1151 2815 5755 9571 19567 47855 97835 648013 3240065 11016221 55081105