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55605060493 is a prime number
BaseRepresentation
bin110011110010010100…
…011110001110001101
312022112012201202010221
4303302110132032031
51402334343413433
641313345231341
74005642133663
oct636224361615
9168465652127
1055605060493
1121644674a54
12a93a032551
135322079678
142996cd4c33
1516a69b872d
hexcf251e38d

55605060493 has 2 divisors, whose sum is σ = 55605060494. Its totient is φ = 55605060492.

The previous prime is 55605060479. The next prime is 55605060547. The reversal of 55605060493 is 39406050655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36038086569 + 19566973924 = 189837^2 + 139882^2 .

It is a cyclic number.

It is not a de Polignac number, because 55605060493 - 29 = 55605059981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55605060403) 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, 27802530246 + 27802530247.

It is an arithmetic number, because the mean of its divisors is an integer number (27802530247).

Almost surely, 255605060493 is an apocalyptic number.

It is an amenable number.

55605060493 is a deficient number, since it is larger than the sum of its proper divisors (1).

55605060493 is an equidigital number, since it uses as much as digits as its factorization.

55605060493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 55605060493 in words is "fifty-five billion, six hundred five million, sixty thousand, four hundred ninety-three".