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55054646455 = 5174173921377
BaseRepresentation
bin110011010001100000…
…110011110010110111
312021002212000211000211
4303101200303302313
51400222442141310
641143004050251
73656206526224
oct632140636267
9167085024024
1055054646455
1121391a04816
12a805833987
1352650228a3
142943b7894b
1516734e2c8a
hexcd1833cb7

55054646455 has 32 divisors (see below), whose sum is σ = 71758249920. Its totient is φ = 40385249280.

The previous prime is 55054646453. The next prime is 55054646477. The reversal of 55054646455 is 55464645055.

It is not a de Polignac number, because 55054646455 - 21 = 55054646453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55054646399 and 55054646408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55054646453) 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 31 ways as a sum of consecutive naturals, for example, 2564727 + ... + 2586103.

It is an arithmetic number, because the mean of its divisors is an integer number (2242445310).

Almost surely, 255054646455 is an apocalyptic number.

55054646455 is a deficient number, since it is larger than the sum of its proper divisors (16703603465).

55054646455 is a wasteful number, since it uses less digits than its factorization.

55054646455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22179.

The product of its (nonzero) digits is 7200000, while the sum is 49.

The spelling of 55054646455 in words is "fifty-five billion, fifty-four million, six hundred forty-six thousand, four hundred fifty-five".

Divisors: 1 5 17 41 85 205 697 739 3485 3695 12563 21377 30299 62815 106885 151495 363409 515083 876457 1817045 2575415 4382285 14899769 15797603 74498845 78988015 268559251 647701723 1342796255 3238508615 11010929291 55054646455