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56055055004991 = 347823312008081
BaseRepresentation
bin11001011111011010101011…
…01001000011010100111111
321100110210220011101211220000
430233231111221003110333
524321401223040124431
6315115200424125343
714543562342644040
oct1457552551032477
9240423804354800
1056055055004991
11169518a721a669
126353a18606853
132537c79b9c8b3
14dbb1172268c7
156731c215b9e6
hex32fb55a4353f

56055055004991 has 40 divisors (see below), whose sum is σ = 95710561677984. Its totient is φ = 32027566717440.

The previous prime is 56055055004981. The next prime is 56055055004999. The reversal of 56055055004991 is 19940055055065.

56055055004991 is a `hidden beast` number, since 5 + 6 + 0 + 5 + 5 + 0 + 5 + 500 + 49 + 91 = 666.

It is not a de Polignac number, because 56055055004991 - 27 = 56055055004863 is a prime.

It is a super-2 number, since 2×560550550049912 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56055055004999) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1335930 + ... + 10672151.

Almost surely, 256055055004991 is an apocalyptic number.

56055055004991 is a deficient number, since it is larger than the sum of its proper divisors (39655506672993).

56055055004991 is a wasteful number, since it uses less digits than its factorization.

56055055004991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12016333 (or 12016324 counting only the distinct ones).

The product of its (nonzero) digits is 6075000, while the sum is 54.

The spelling of 56055055004991 in words is "fifty-six trillion, fifty-five billion, fifty-five million, four thousand, nine hundred ninety-one".

Divisors: 1 3 7 9 21 27 63 81 189 567 8233 24699 57631 74097 172893 222291 518679 666873 1556037 4668111 12008081 36024243 84056567 108072729 252169701 324218187 756509103 972654561 2269527309 6808581927 98862530873 296587592619 692037716111 889762777857 2076113148333 2669288333571 6228339444999 8007865000713 18685018334997 56055055004991