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55046560 = 2551492309
BaseRepresentation
bin1101000111111…
…1000110100000
310211120122200111
43101333012200
5103042442220
65243501104
71235613412
oct321770640
9124518614
1055046560
1129088328
1216527794
13b53443a
14744c9b2
154c7515a
hex347f1a0

55046560 has 48 divisors (see below), whose sum is σ = 130977000. Its totient is φ = 21861376.

The previous prime is 55046549. The next prime is 55046581. The reversal of 55046560 is 6564055.

55046560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42458256 + 12588304 = 6516^2 + 3548^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22686 + ... + 24994.

Almost surely, 255046560 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 55046560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65488500).

55046560 is an abundant number, since it is smaller than the sum of its proper divisors (75930440).

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

55046560 is a wasteful number, since it uses less digits than its factorization.

55046560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473 (or 2465 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 55046560 is about 7419.3368975940. The cubic root of 55046560 is about 380.4025282127.

The spelling of 55046560 in words is "fifty-five million, forty-six thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 149 160 298 596 745 1192 1490 2309 2384 2980 4618 4768 5960 9236 11545 11920 18472 23090 23840 36944 46180 73888 92360 184720 344041 369440 688082 1376164 1720205 2752328 3440410 5504656 6880820 11009312 13761640 27523280 55046560