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55293045289 is a prime number
BaseRepresentation
bin110011011111101110…
…001110101000101001
312021201110121201202021
4303133232032220221
51401220004422124
641222401504441
73665133062446
oct633756165051
9167643551667
1055293045289
11214a4534349
12a871642121
1352a25329a1
1429676b49cd
1516893d47e4
hexcdfb8ea29

55293045289 has 2 divisors, whose sum is σ = 55293045290. Its totient is φ = 55293045288.

The previous prime is 55293045221. The next prime is 55293045299. The reversal of 55293045289 is 98254039255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38943075600 + 16349969689 = 197340^2 + 127867^2 .

It is a cyclic number.

It is not a de Polignac number, because 55293045289 - 221 = 55290948137 is a prime.

It is not a weakly prime, because it can be changed into another prime (55293045209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27646522644 + 27646522645.

It is an arithmetic number, because the mean of its divisors is an integer number (27646522645).

Almost surely, 255293045289 is an apocalyptic number.

It is an amenable number.

55293045289 is a deficient number, since it is larger than the sum of its proper divisors (1).

55293045289 is an equidigital number, since it uses as much as digits as its factorization.

55293045289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888000, while the sum is 52.

The spelling of 55293045289 in words is "fifty-five billion, two hundred ninety-three million, forty-five thousand, two hundred eighty-nine".