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50538543055 = 57111313177081
BaseRepresentation
bin101111000100010101…
…001111011111001111
311211110010011222210221
4233010111033133033
51312000331334210
635114520212211
73436251346060
oct570425173717
9154403158727
1050538543055
111a484765460
12996530a067
1349c54cb460
14263607a567
1514abcc31da
hexbc454f7cf

50538543055 has 64 divisors (see below), whose sum is σ = 82049780736. Its totient is φ = 28858752000.

The previous prime is 50538543017. The next prime is 50538543067. The reversal of 50538543055 is 55034583505.

It is not a de Polignac number, because 50538543055 - 211 = 50538541007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 617115 + ... + 694195.

It is an arithmetic number, because the mean of its divisors is an integer number (1282027824).

Almost surely, 250538543055 is an apocalyptic number.

50538543055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

50538543055 is a deficient number, since it is larger than the sum of its proper divisors (31511237681).

50538543055 is a wasteful number, since it uses less digits than its factorization.

50538543055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77248.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 50538543055 in words is "fifty billion, five hundred thirty-eight million, five hundred forty-three thousand, fifty-five".

Divisors: 1 5 7 11 13 35 55 65 77 91 131 143 385 455 655 715 917 1001 1441 1703 4585 5005 7205 8515 10087 11921 18733 50435 59605 77081 93665 131131 385405 539567 655655 847891 1002053 2697835 4239455 5010265 5935237 7014371 10097611 11022583 29676185 35071855 50488055 55112915 70683277 77158081 111073721 131268943 353416385 385790405 555368605 656344715 777516047 918882601 1443958373 3887580235 4594413005 7219791865 10107708611 50538543055