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55255160 = 23573127149
BaseRepresentation
bin1101001011001…
…0000001111000
310211222020211102
43102302001320
5103121131120
65252150532
71240442522
oct322620170
9124866742
1055255160
1129210024
1216608448
13b5a837c
1474a4a12
154cb6d75
hex34b2078

55255160 has 64 divisors (see below), whose sum is σ = 127872000. Its totient is φ = 21482496.

The previous prime is 55255159. The next prime is 55255169. The reversal of 55255160 is 6155255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55255169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370766 + ... + 370914.

It is an arithmetic number, because the mean of its divisors is an integer number (1998000).

Almost surely, 255255160 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 55255160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63936000).

55255160 is an abundant number, since it is smaller than the sum of its proper divisors (72616840).

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

55255160 is a wasteful number, since it uses less digits than its factorization.

55255160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 55255160 is about 7433.3814647171. The cubic root of 55255160 is about 380.8824367520.

The spelling of 55255160 in words is "fifty-five million, two hundred fifty-five thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 73 127 146 149 254 292 298 365 508 584 596 635 730 745 1016 1192 1270 1460 1490 2540 2920 2980 5080 5960 9271 10877 18542 18923 21754 37084 37846 43508 46355 54385 74168 75692 87016 92710 94615 108770 151384 185420 189230 217540 370840 378460 435080 756920 1381379 2762758 5525516 6906895 11051032 13813790 27627580 55255160