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55162820960 = 25513232939761
BaseRepresentation
bin110011010111111101…
…011101100101100000
312021101101120122112222
4303113331131211200
51400433140232320
641201430410212
73661662145622
oct632775354540
9167341518488
1055162820960
1121437a79935
12a835b00968
135281569080
142954296c12
15167cc5e825
hexcd7f5d960

55162820960 has 192 divisors, whose sum is σ = 151502762880. Its totient is φ = 18809978880.

The previous prime is 55162820917. The next prime is 55162820969. The reversal of 55162820960 is 6902826155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55162820969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1367480 + ... + 1407240.

It is an arithmetic number, because the mean of its divisors is an integer number (789076890).

Almost surely, 255162820960 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 55162820960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75751381440).

55162820960 is an abundant number, since it is smaller than the sum of its proper divisors (96339941920).

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

55162820960 is a wasteful number, since it uses less digits than its factorization.

55162820960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39841 (or 39833 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 55162820960 in words is "fifty-five billion, one hundred sixty-two million, eight hundred twenty thousand, nine hundred sixty".