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55213850176 = 267318165293
BaseRepresentation
bin110011011011000000…
…000111111001000000
312021111221121012110221
4303123000013321000
51401034221201201
641210452232424
73663151661062
oct633300077100
9167457535427
1055213850176
1121463862941
12a84b00b714
13528bcc4a84
14295ad7b732
15168248e4a1
hexcdb007e40

55213850176 has 56 divisors (see below), whose sum is σ = 111681208184. Its totient is φ = 27077898240.

The previous prime is 55213850149. The next prime is 55213850179. The reversal of 55213850176 is 67105831255.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 626200576 + 54587649600 = 25024^2 + 233640^2 .

It is not an unprimeable number, because it can be changed into a prime (55213850179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812986 + ... + 878278.

It is an arithmetic number, because the mean of its divisors is an integer number (1994307289).

Almost surely, 255213850176 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 55213850176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55840604092).

55213850176 is an abundant number, since it is smaller than the sum of its proper divisors (56467358008).

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

55213850176 is a wasteful number, since it uses less digits than its factorization.

55213850176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65559 (or 65549 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 55213850176 in words is "fifty-five billion, two hundred thirteen million, eight hundred fifty thousand, one hundred seventy-six".

Divisors: 1 2 4 8 16 32 64 73 146 181 292 362 584 724 1168 1448 2336 2896 4672 5792 11584 13213 26426 52852 65293 105704 130586 211408 261172 422816 522344 845632 1044688 2089376 4178752 4766389 9532778 11818033 19065556 23636066 38131112 47272132 76262224 94544264 152524448 189088528 305048896 378177056 756354112 862716409 1725432818 3450865636 6901731272 13803462544 27606925088 55213850176