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55450005455 = 51310143119597
BaseRepresentation
bin110011101001000100…
…111110111111001111
312022010101222010121202
4303221010332333033
51402030200133310
641250130020115
74002050161325
oct635104767717
9168111863552
1055450005455
112157509a899
12a8b611763b
1352c8bca920
142980491d15
15169808b3a5
hexce913efcf

55450005455 has 32 divisors (see below), whose sum is σ = 72539566848. Its totient is φ = 40446144000.

The previous prime is 55450005439. The next prime is 55450005491.

55450005455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55450005455 - 24 = 55450005439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2819717 + ... + 2839313.

It is an arithmetic number, because the mean of its divisors is an integer number (2266861464).

Almost surely, 255450005455 is an apocalyptic number.

55450005455 is a deficient number, since it is larger than the sum of its proper divisors (17089561393).

55450005455 is a wasteful number, since it uses less digits than its factorization.

55450005455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20147.

The product of its (nonzero) digits is 250000, while the sum is 38.

The spelling of 55450005455 in words is "fifty-five billion, four hundred fifty million, five thousand, four hundred fifty-five".

Divisors: 1 5 13 65 101 431 505 1313 2155 5603 6565 19597 28015 43531 97985 217655 254761 565903 1273805 1979297 2829515 8446307 9896485 25730861 42231535 109801991 128654305 549009955 853077007 4265385035 11090001091 55450005455