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55099875168 = 25321331474737
BaseRepresentation
bin110011010100001101…
…010101111101100000
312021020000010200011100
4303110031111331200
51400321032001133
641151301314400
73660266132322
oct632415257540
9167200120140
1055099875168
1121405496818
12a818a05a00
1352714ca340
142949b8d612
151677478e13
hexcd4355f60

55099875168 has 144 divisors (see below), whose sum is σ = 174187069056. Its totient is φ = 16406876160.

The previous prime is 55099875161. The next prime is 55099875191. The reversal of 55099875168 is 86157899055.

55099875168 is a `hidden beast` number, since 550 + 9 + 9 + 8 + 75 + 1 + 6 + 8 = 666.

55099875168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55099875161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121305 + ... + 353432.

It is an arithmetic number, because the mean of its divisors is an integer number (1209632424).

Almost surely, 255099875168 is an apocalyptic number.

It is an amenable number.

55099875168 is an abundant number, since it is smaller than the sum of its proper divisors (119087193888).

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

55099875168 is a wasteful number, since it uses less digits than its factorization.

55099875168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474797 (or 474786 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 63.

It can be divided in two parts, 5509987 and 5168, that added together give a palindrome (5515155).

The spelling of 55099875168 in words is "fifty-five billion, ninety-nine million, eight hundred seventy-five thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 31 32 36 39 48 52 62 72 78 93 96 104 117 124 144 156 186 208 234 248 279 288 312 372 403 416 468 496 558 624 744 806 936 992 1116 1209 1248 1488 1612 1872 2232 2418 2976 3224 3627 3744 4464 4836 6448 7254 8928 9672 12896 14508 19344 29016 38688 58032 116064 474737 949474 1424211 1898948 2848422 3797896 4272633 5696844 6171581 7595792 8545266 11393688 12343162 14716847 15191584 17090532 18514743 22787376 24686324 29433694 34181064 37029486 44150541 45574752 49372648 55544229 58867388 68362128 74058972 88301082 98745296 111088458 117734776 132451623 136724256 148117944 176602164 191319011 197490592 222176916 235469552 264903246 296235888 353204328 382638022 444353832 470939104 529806492 573957033 592471776 706408656 765276044 888707664 1059612984 1147914066 1412817312 1530552088 1721871099 1777415328 2119225968 2295828132 3061104176 3443742198 4238451936 4591656264 6122208352 6887484396 9183312528 13774968792 18366625056 27549937584 55099875168