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55005121125 = 3253192573339
BaseRepresentation
bin110011001110100011…
…111000101001100101
312020222101211200001100
4303032203320221211
51400122302334000
641134034350313
73655035546423
oct631643705145
9166871750040
1055005121125
1121366a58699
12a7b112b399
1352579a2566
14293b366113
15166deada00
hexcce8f8a65

55005121125 has 48 divisors (see below), whose sum is σ = 104374670400. Its totient is φ = 27792050400.

The previous prime is 55005121123. The next prime is 55005121133. The reversal of 55005121125 is 52112150055.

It is not a de Polignac number, because 55005121125 - 21 = 55005121123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005121123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1265295 + ... + 1308044.

It is an arithmetic number, because the mean of its divisors is an integer number (2174472300).

Almost surely, 255005121125 is an apocalyptic number.

It is an amenable number.

55005121125 is a deficient number, since it is larger than the sum of its proper divisors (49369549275).

55005121125 is a wasteful number, since it uses less digits than its factorization.

55005121125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573379 (or 2573366 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The spelling of 55005121125 in words is "fifty-five billion, five million, one hundred twenty-one thousand, one hundred twenty-five".

Divisors: 1 3 5 9 15 19 25 45 57 75 95 125 171 225 285 375 475 855 1125 1425 2375 4275 7125 21375 2573339 7720017 12866695 23160051 38600085 48893441 64333475 115800255 146680323 193000425 244467205 321667375 440040969 579001275 733401615 965002125 1222336025 2200204845 2895006375 3667008075 6111680125 11001024225 18335040375 55005121125