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55271646833 = 1353139577123
BaseRepresentation
bin110011011110011100…
…100110011001110001
312021122222100120120212
4303132130212121301
51401144020144313
641220315113505
73664453150334
oct633634463161
9167588316525
1055271646833
1121493449377
12a866442895
13529ac7cb90
14296490461b
1516875a93a8
hexcde726671

55271646833 has 16 divisors (see below), whose sum is σ = 61082804160. Its totient is φ = 49697129664.

The previous prime is 55271646713. The next prime is 55271646901. The reversal of 55271646833 is 33864617255.

It is not a de Polignac number, because 55271646833 - 212 = 55271642737 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55271648833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192791 + ... + 384332.

It is an arithmetic number, because the mean of its divisors is an integer number (3817675260).

Almost surely, 255271646833 is an apocalyptic number.

55271646833 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

55271646833 is a deficient number, since it is larger than the sum of its proper divisors (5811157327).

55271646833 is a wasteful number, since it uses less digits than its factorization.

55271646833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577328.

The product of its digits is 3628800, while the sum is 50.

The spelling of 55271646833 in words is "fifty-five billion, two hundred seventy-one million, six hundred forty-six thousand, eight hundred thirty-three".

Divisors: 1 13 53 139 689 1807 7367 95771 577123 7502599 30587519 80220097 397637747 1042861261 4251665141 55271646833