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2555470028538 = 23572131819157
BaseRepresentation
bin100101001011111101111…
…000100001111011111010
3100001022010002200222100000
4211023331320201323322
5313332100311403123
65233544451253430
7352424633562300
oct45137570417372
910038102628300
102555470028538
118a5850234779
123533258aa276
13156c977a082b
148b984a98270
1546718804b43
hex252fde21efa

2555470028538 has 144 divisors (see below), whose sum is σ = 6730372512864. Its totient is φ = 724559865120.

The previous prime is 2555470028497. The next prime is 2555470028569. The reversal of 2555470028538 is 8358200745552.

It is a happy number.

2555470028538 is a `hidden beast` number, since 2 + 5 + 554 + 7 + 0 + 0 + 2 + 85 + 3 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2710056 + ... + 3529212.

It is an arithmetic number, because the mean of its divisors is an integer number (46738698006).

Almost surely, 22555470028538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2555470028538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3365186256432).

2555470028538 is an abundant number, since it is smaller than the sum of its proper divisors (4174902484326).

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

2555470028538 is a wasteful number, since it uses less digits than its factorization.

2555470028538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819319 (or 819300 counting only the distinct ones).

The product of its (nonzero) digits is 13440000, while the sum is 54.

The spelling of 2555470028538 in words is "two trillion, five hundred fifty-five billion, four hundred seventy million, twenty-eight thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 49 54 63 81 98 126 131 147 162 189 243 262 294 378 393 441 486 567 786 882 917 1134 1179 1323 1701 1834 2358 2646 2751 3402 3537 3969 5502 6419 7074 7938 8253 10611 11907 12838 16506 19257 21222 23814 24759 31833 38514 49518 57771 63666 74277 115542 148554 173313 222831 346626 445662 519939 819157 1039878 1559817 1638314 2457471 3119634 4914942 5734099 7372413 11468198 14744826 17202297 22117239 34404594 40138693 44234478 51606891 66351717 80277386 103213782 107309567 120416079 132703434 154820673 199055151 214619134 240832158 309641346 321928701 361248237 398110302 464462019 643857402 722496474 751166969 928924038 965786103 1083744711 1393386057 1502333938 1931572206 2167489422 2253500907 2786772114 2897358309 3251234133 4507001814 5258168783 5794716618 6502468266 6760502721 8692074927 9753702399 10516337566 13521005442 15774506349 17384149854 19507404798 20281508163 26076224781 31549012698 40563016326 47323519047 52152449562 60844524489 94647038094 121689048978 141970557141 182533573467 283941114282 365067146934 425911671423 851823342846 1277735014269 2555470028538