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55055706155 = 519952160869
BaseRepresentation
bin110011010001100100…
…110110100000101011
312021002221000122122222
4303101210312200223
51400223230044110
641143042504255
73656221531562
oct632144664053
9167087018588
1055055706155
11213925689aa
12a80606508b
135265304028
142943d72bd9
151673651c55
hexcd193682b

55055706155 has 16 divisors (see below), whose sum is σ = 69552496800. Its totient is φ = 41721361920.

The previous prime is 55055706131. The next prime is 55055706161. The reversal of 55055706155 is 55160755055.

It is a happy number.

It is not a de Polignac number, because 55055706155 - 220 = 55054657579 is a prime.

It is a super-2 number, since 2×550557061552 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874061 + ... + 934929.

It is an arithmetic number, because the mean of its divisors is an integer number (4347031050).

Almost surely, 255055706155 is an apocalyptic number.

55055706155 is a deficient number, since it is larger than the sum of its proper divisors (14496790645).

55055706155 is a wasteful number, since it uses less digits than its factorization.

55055706155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70414.

The product of its (nonzero) digits is 656250, while the sum is 44.

The spelling of 55055706155 in words is "fifty-five billion, fifty-five million, seven hundred six thousand, one hundred fifty-five".

Divisors: 1 5 19 95 9521 47605 60869 180899 304345 904495 1156511 5782555 579533749 2897668745 11011141231 55055706155