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53505705855 = 357975253383
BaseRepresentation
bin110001110101001100…
…000100011101111111
312010002220102110222110
4301311030010131333
51334034430041410
640325152545103
73602630665350
oct616514043577
9163086373873
1053505705855
1120767637818
12a452b52193
1350791564a4
142838175d27
1515d252c720
hexc7530477f

53505705855 has 32 divisors (see below), whose sum is σ = 98847673344. Its totient is φ = 24207584256.

The previous prime is 53505705829. The next prime is 53505705899. The reversal of 53505705855 is 55850750535.

It is not a de Polignac number, because 53505705855 - 25 = 53505705823 is a prime.

It is a super-3 number, since 3×535057058553 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

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, 2616507 + ... + 2636876.

It is an arithmetic number, because the mean of its divisors is an integer number (3088989792).

Almost surely, 253505705855 is an apocalyptic number.

53505705855 is a deficient number, since it is larger than the sum of its proper divisors (45341967489).

53505705855 is a wasteful number, since it uses less digits than its factorization.

53505705855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5253495.

The product of its (nonzero) digits is 2625000, while the sum is 48.

The spelling of 53505705855 in words is "fifty-three billion, five hundred five million, seven hundred five thousand, eight hundred fifty-five".

Divisors: 1 3 5 7 15 21 35 97 105 291 485 679 1455 2037 3395 10185 5253383 15760149 26266915 36773681 78800745 110321043 183868405 509578151 551605215 1528734453 2547890755 3567047057 7643672265 10701141171 17835235285 53505705855