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555005555005 = 511101990110091
BaseRepresentation
bin10000001001110001110…
…10001011000100111101
31222001120021212102110111
420010320322023010331
533043122410230010
61102544355110021
755045361244046
oct10047072130475
91861507772414
10555005555005
111a4416192070
128b6922a2311
134044bc42965
141cc1065d8cd
15e684b7a58a
hex8138e8b13d

555005555005 has 32 divisors (see below), whose sum is σ = 733893146496. Its totient is φ = 399564000000.

The previous prime is 555005554997. The next prime is 555005555009. The reversal of 555005555005 is 500555500555.

It is not a de Polignac number, because 555005555005 - 23 = 555005554997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555005555009) 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, 54995010 + ... + 55005100.

It is an arithmetic number, because the mean of its divisors is an integer number (22934160828).

Almost surely, 2555005555005 is an apocalyptic number.

555005555005 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

555005555005 is a deficient number, since it is larger than the sum of its proper divisors (178887591491).

555005555005 is a wasteful number, since it uses less digits than its factorization.

555005555005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20109.

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 555005555005 in words is "five hundred fifty-five billion, five million, five hundred fifty-five thousand, five".

Divisors: 1 5 11 55 101 505 1111 5555 9901 10091 49505 50455 108911 111001 544555 555005 1000001 1019191 5000005 5095955 11000011 11211101 55000055 56055505 99910991 499554955 1099020901 5495104505 10091010091 50455050455 111001111001 555005555005