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55693391185 = 51929128915683
BaseRepresentation
bin110011110111100101…
…011011010101010001
312022202100221102002001
4303313211123111101
51403030002004220
641330222354001
74011064004605
oct636745332521
9168670842061
1055693391185
112168a516123
12a96372b901
135337465853
1429a4929505
1516ae61580a
hexcf795b551

55693391185 has 32 divisors (see below), whose sum is σ = 72836496000. Its totient is φ = 40720006656.

The previous prime is 55693391129. The next prime is 55693391189. The reversal of 55693391185 is 58119339655.

It is a cyclic number.

It is not a de Polignac number, because 55693391185 - 227 = 55559173457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55693391189) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3543354 + ... + 3559036.

It is an arithmetic number, because the mean of its divisors is an integer number (2276140500).

Almost surely, 255693391185 is an apocalyptic number.

It is an amenable number.

55693391185 is a deficient number, since it is larger than the sum of its proper divisors (17143104815).

55693391185 is a wasteful number, since it uses less digits than its factorization.

55693391185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17025.

The product of its digits is 4374000, while the sum is 55.

The spelling of 55693391185 in words is "fifty-five billion, six hundred ninety-three million, three hundred ninety-one thousand, one hundred eighty-five".

Divisors: 1 5 19 29 95 145 551 1289 2755 6445 15683 24491 37381 78415 122455 186905 297977 454807 710239 1489885 2274035 3551195 8641333 20215387 43206665 101076935 384092353 586246223 1920461765 2931231115 11138678237 55693391185