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55200544525 = 52722315712479
BaseRepresentation
bin110011011010001101…
…010111011100001101
312021111000120012120001
4303122031113130031
51401022314411100
641205255124301
73662630613100
oct633215273415
9167430505501
1055200544525
11214572a5135
12a846673691
1352893166c9
1429592b6737
151681211d6a
hexcda35770d

55200544525 has 72 divisors (see below), whose sum is σ = 83621790720. Its totient is φ = 35972576640.

The previous prime is 55200544519. The next prime is 55200544541. The reversal of 55200544525 is 52544500255.

It is not a de Polignac number, because 55200544525 - 211 = 55200542477 is a prime.

It is a congruent number.

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, 4417236 + ... + 4429714.

It is an arithmetic number, because the mean of its divisors is an integer number (1161413760).

Almost surely, 255200544525 is an apocalyptic number.

It is an amenable number.

55200544525 is a deficient number, since it is larger than the sum of its proper divisors (28421246195).

55200544525 is a wasteful number, since it uses less digits than its factorization.

55200544525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12683 (or 12671 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 37.

The spelling of 55200544525 in words is "fifty-five billion, two hundred million, five hundred forty-four thousand, five hundred twenty-five".

Divisors: 1 5 7 23 25 35 49 115 157 161 175 245 575 785 805 1099 1127 1225 3611 3925 4025 5495 5635 7693 12479 18055 25277 27475 28175 38465 62395 87353 90275 126385 176939 192325 287017 311975 436765 611471 631925 884695 1435085 1959203 2009119 2183825 3057355 4423475 7175425 9796015 10045595 13714421 14063833 15286775 45061669 48980075 50227975 68572105 70319165 96000947 225308345 315431683 342860525 351595825 480004735 1126541725 1577158415 2208021781 2400023675 7885792075 11040108905 55200544525