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55606873145 = 513781177917
BaseRepresentation
bin110011110010011011…
…011000110000111001
312022112100010211122012
4303302123120300321
51402340324420040
641313452135305
74005663423455
oct636233306071
9168470124565
1055606873145
11216456a290a
12a93a767535
135322562745
142997247665
1516a6c25865
hexcf26d8c39

55606873145 has 8 divisors (see below), whose sum is σ = 67215316104. Its totient is φ = 44160786304.

The previous prime is 55606873111. The next prime is 55606873169. The reversal of 55606873145 is 54137860655.

It can be written as a sum of positive squares in 4 ways, for example, as 583319104 + 55023554041 = 24152^2 + 234571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55606873145 - 26 = 55606873081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55606873093 and 55606873102.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40588274 + ... + 40589643.

It is an arithmetic number, because the mean of its divisors is an integer number (8401914513).

Almost surely, 255606873145 is an apocalyptic number.

It is an amenable number.

55606873145 is a deficient number, since it is larger than the sum of its proper divisors (11608442959).

55606873145 is a wasteful number, since it uses less digits than its factorization.

55606873145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81178059.

The product of its (nonzero) digits is 3024000, while the sum is 50.

The spelling of 55606873145 in words is "fifty-five billion, six hundred six million, eight hundred seventy-three thousand, one hundred forty-five".

Divisors: 1 5 137 685 81177917 405889585 11121374629 55606873145