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55850830569 = 32109101955871
BaseRepresentation
bin110100000000111110…
…000000101011101001
312100011100012011022100
4310000332000223221
51403340303034234
641354005044013
74015015140552
oct640076005351
9170140164270
1055850830569
1121760379716
12a9a83b6609
135360c6a951
1429bb7cd329
1516bd364399
hexd00f80ae9

55850830569 has 24 divisors (see below), whose sum is σ = 81494899200. Its totient is φ = 36855427680.

The previous prime is 55850830499. The next prime is 55850830589. The reversal of 55850830569 is 96503805855.

55850830569 is a `hidden beast` number, since 5 + 58 + 508 + 30 + 56 + 9 = 666.

It is a de Polignac number, because none of the positive numbers 2k-55850830569 is a prime.

It is a super-2 number, since 2×558508305692 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55850830589) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 971704 + ... + 1027574.

It is an arithmetic number, because the mean of its divisors is an integer number (3395620800).

Almost surely, 255850830569 is an apocalyptic number.

It is an amenable number.

55850830569 is a deficient number, since it is larger than the sum of its proper divisors (25644068631).

55850830569 is a wasteful number, since it uses less digits than its factorization.

55850830569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57005 (or 57002 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 54.

The spelling of 55850830569 in words is "fifty-five billion, eight hundred fifty million, eight hundred thirty thousand, five hundred sixty-nine".

Divisors: 1 3 9 109 327 981 1019 3057 9171 55871 111071 167613 333213 502839 999639 6089939 18269817 54809451 56932549 170797647 512392941 6205647841 18616943523 55850830569