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55050504993 = 3211556065707
BaseRepresentation
bin110011010001010001…
…000000101100100001
312021002120020102000100
4303101101000230201
51400220412124433
641142335213013
73656126400051
oct632121005441
9167076212010
1055050504993
112138a636220
12a804377169
135264202813
1429433bb561
151672e75b13
hexcd1440b21

55050504993 has 12 divisors (see below), whose sum is σ = 86746250448. Its totient is φ = 33363942360.

The previous prime is 55050504979. The next prime is 55050505021. The reversal of 55050504993 is 39940505055.

55050504993 is a `hidden beast` number, since 5 + 5 + 0 + 50 + 504 + 9 + 93 = 666.

It is not a de Polignac number, because 55050504993 - 217 = 55050373921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55050504913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278032755 + ... + 278032952.

It is an arithmetic number, because the mean of its divisors is an integer number (7228854204).

Almost surely, 255050504993 is an apocalyptic number.

It is an amenable number.

55050504993 is a deficient number, since it is larger than the sum of its proper divisors (31695745455).

55050504993 is a wasteful number, since it uses less digits than its factorization.

55050504993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556065724 (or 556065721 counting only the distinct ones).

The product of its (nonzero) digits is 607500, while the sum is 45.

The spelling of 55050504993 in words is "fifty-five billion, fifty million, five hundred four thousand, nine hundred ninety-three".

Divisors: 1 3 9 11 33 99 556065707 1668197121 5004591363 6116722777 18350168331 55050504993