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55560507169 is a prime number
BaseRepresentation
bin110011101111101010…
…100000111100100001
312022102002220012110211
4303233222200330201
51402241442212134
641305114254121
74004561342626
oct635752407441
9168362805424
1055560507169
1121621504422
12a927127341
135315a7a45b
14299101834d
1516a2b17764
hexcefaa0f21

55560507169 has 2 divisors, whose sum is σ = 55560507170. Its totient is φ = 55560507168.

The previous prime is 55560507157. The next prime is 55560507203. The reversal of 55560507169 is 96170506555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47966256144 + 7594251025 = 219012^2 + 87145^2 .

It is a cyclic number.

It is not a de Polignac number, because 55560507169 - 213 = 55560498977 is a prime.

It is a super-2 number, since 2×555605071692 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55560507109) by changing a digit.

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 as a sum of consecutive naturals, namely, 27780253584 + 27780253585.

It is an arithmetic number, because the mean of its divisors is an integer number (27780253585).

Almost surely, 255560507169 is an apocalyptic number.

It is an amenable number.

55560507169 is a deficient number, since it is larger than the sum of its proper divisors (1).

55560507169 is an equidigital number, since it uses as much as digits as its factorization.

55560507169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1417500, while the sum is 49.

The spelling of 55560507169 in words is "fifty-five billion, five hundred sixty million, five hundred seven thousand, one hundred sixty-nine".