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55055550054 = 2341478953503
BaseRepresentation
bin110011010001100100…
…010000011001100110
312021002220201201112110
4303101210100121212
51400223210100204
641143035301450
73656220311511
oct632144203146
9167086651473
1055055550054
112139247169a
12a805baa886
13526527ac6b
142943d31d78
151673620889
hexcd1910666

55055550054 has 64 divisors (see below), whose sum is σ = 116493189120. Its totient is φ = 17326087680.

The previous prime is 55055550049. The next prime is 55055550059. The reversal of 55055550054 is 45005555055.

It is an interprime number because it is at equal distance from previous prime (55055550049) and next prime (55055550059).

It is a super-2 number, since 2×550555500542 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55055549994 and 55055550021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055550059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1002267 + ... + 1055769.

It is an arithmetic number, because the mean of its divisors is an integer number (1820206080).

Almost surely, 255055550054 is an apocalyptic number.

55055550054 is an abundant number, since it is smaller than the sum of its proper divisors (61437639066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55055550054 is a wasteful number, since it uses less digits than its factorization.

55055550054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53685.

The product of its (nonzero) digits is 312500, while the sum is 39.

The spelling of 55055550054 in words is "fifty-five billion, fifty-five million, five hundred fifty thousand, fifty-four".

Divisors: 1 2 3 6 41 47 82 89 94 123 141 178 246 267 282 534 1927 3649 3854 4183 5781 7298 8366 10947 11562 12549 21894 25098 53503 107006 160509 171503 321018 343006 514509 1029018 2193623 2514641 4387246 4761767 5029282 6580869 7543923 9523534 13161738 14285301 15087846 28570602 103100281 195232447 206200562 223803049 309300843 390464894 447606098 585697341 618601686 671409147 1171394682 1342818294 9175925009 18351850018 27527775027 55055550054