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55055060610540 = 223516734131609879
BaseRepresentation
bin11001000010010100000010…
…10101001010110111101100
321012221012201211112012202220
430201022001111022313230
524204010231004014130
6313031540133515340
714411411503562514
oct1441120125126754
9235835654465686
1055055060610540
11165a67a1483261
1262120584a2b50
132494892b17663
14d8497183c844
15657196151410
hex32128154adec

55055060610540 has 96 divisors (see below), whose sum is σ = 155122782151680. Its totient is φ = 14589152322816.

The previous prime is 55055060610533. The next prime is 55055060610631. The reversal of 55055060610540 is 4501606055055.

It is a junction number, because it is equal to n+sod(n) for n = 55055060610492 and 55055060610501.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33393321 + ... + 35003199.

It is an arithmetic number, because the mean of its divisors is an integer number (1615862314080).

Almost surely, 255055060610540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55055060610540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77561391075840).

55055060610540 is an abundant number, since it is smaller than the sum of its proper divisors (100067721541140).

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

55055060610540 is a wasteful number, since it uses less digits than its factorization.

55055060610540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613471 (or 1613469 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 42.

Adding to 55055060610540 its reverse (4501606055055), we get a palindrome (59556666665595).

The spelling of 55055060610540 in words is "fifty-five trillion, fifty-five billion, sixty million, six hundred ten thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 167 334 501 668 835 1002 1670 2004 2505 3340 3413 5010 6826 10020 10239 13652 17065 20478 34130 40956 51195 68260 102390 204780 569971 1139942 1609879 1709913 2279884 2849855 3219758 3419826 4829637 5699710 6439516 6839652 8049395 8549565 9659274 11399420 16098790 17099130 19318548 24148185 32197580 34198260 48296370 96592740 268849793 537699586 806549379 1075399172 1344248965 1613098758 2688497930 3226197516 4032746895 5376995860 5494517027 8065493790 10989034054 16130987580 16483551081 21978068108 27472585135 32967102162 54945170270 65934204324 82417755405 109890340540 164835510810 329671021620 917584343509 1835168687018 2752753030527 3670337374036 4587921717545 5505506061054 9175843435090 11011012122108 13763765152635 18351686870180 27527530305270 55055060610540