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55489348260 = 223252621117617
BaseRepresentation
bin110011101011011011…
…000100001010100100
312022020010222221210200
4303223123010022210
51402120233121020
641254053150500
74003035451353
oct635333041244
9168203887720
1055489348260
1121595321705
12a90732b430
1353040c42a8
1429857b399a
15169b75d590
hexceb6c42a4

55489348260 has 72 divisors (see below), whose sum is σ = 168383340216. Its totient is φ = 14791388160.

The previous prime is 55489348259. The next prime is 55489348279. The reversal of 55489348260 is 6284398455.

55489348260 is a `hidden beast` number, since 5 + 548 + 9 + 34 + 8 + 2 + 60 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 685601856 + 54803746404 = 26184^2 + 234102^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55489348197 and 55489348206.

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 23 ways as a sum of consecutive naturals, for example, 412972 + ... + 530588.

It is an arithmetic number, because the mean of its divisors is an integer number (2338657503).

Almost surely, 255489348260 is an apocalyptic number.

It is an amenable number.

55489348260 is an abundant number, since it is smaller than the sum of its proper divisors (112893991956).

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

55489348260 is a wasteful number, since it uses less digits than its factorization.

55489348260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120253 (or 120248 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 55489348260 in words is "fifty-five billion, four hundred eighty-nine million, three hundred forty-eight thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 2621 5242 7863 10484 13105 15726 23589 26210 31452 39315 47178 52420 78630 94356 117617 117945 157260 235234 235890 352851 470468 471780 588085 705702 1058553 1176170 1411404 1764255 2117106 2352340 3528510 4234212 5292765 7057020 10585530 21171060 308274157 616548314 924822471 1233096628 1541370785 1849644942 2774467413 3082741570 3699289884 4624112355 5548934826 6165483140 9248224710 11097869652 13872337065 18496449420 27744674130 55489348260