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55050055505500 = 22531189112461809
BaseRepresentation
bin11001000010001010101110…
…00000001101011001011100
321012220201211000112112102011
430201011113000031121130
524203420003202134000
6313025351341041004
714411143460103526
oct1441052700153134
9235821730475364
1055050055505500
11165a46631a9810
1262110a0256164
132494275bbc243
14d84618c0ca16
15656ea1a3c2ba
hex32115700d65c

55050055505500 has 96 divisors (see below), whose sum is σ = 132632960241600. Its totient is φ = 19793278208000.

The previous prime is 55050055505491. The next prime is 55050055505507. The reversal of 55050055505500 is 550555005055.

It is a super-2 number, since 2×550500555055002 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050055505507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55741405 + ... + 56720404.

It is an arithmetic number, because the mean of its divisors is an integer number (1381593335850).

Almost surely, 255050055505500 is an apocalyptic number.

55050055505500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55050055505500 is an abundant number, since it is smaller than the sum of its proper divisors (77582904736100).

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

55050055505500 is a wasteful number, since it uses less digits than its factorization.

55050055505500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112461928 (or 112461916 counting only the distinct ones).

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

It can be divided in two parts, 55050055 and 505500, that added together give a palindrome (55555555).

The spelling of 55050055505500 in words is "fifty-five trillion, fifty billion, fifty-five million, five hundred five thousand, five hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 89 100 110 125 178 220 250 275 356 445 500 550 890 979 1100 1375 1780 1958 2225 2750 3916 4450 4895 5500 8900 9790 11125 19580 22250 24475 44500 48950 97900 122375 244750 489500 112461809 224923618 449847236 562309045 1124618090 1237079899 2249236180 2474159798 2811545225 4948319596 5623090450 6185399495 10009101001 11246180900 12370798990 14057726125 20018202002 24741597980 28115452250 30926997475 40036404004 50045505005 56230904500 61853994950 100091010010 110100111011 123707989900 154634987375 200182020020 220200222022 250227525025 309269974750 440400444044 500455050050 550500555055 618539949500 1000910100100 1101001110110 1251137625125 2202002220220 2502275250250 2752502775275 5004550500500 5505005550550 11010011101100 13762513876375 27525027752750 55050055505500