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55860032191 is a prime number
BaseRepresentation
bin110100000001100001…
…000111001010111111
312100011222111122120011
4310001201013022333
51403400132012231
641354534204051
74015156303465
oct640141071277
9170158448504
1055860032191
1121765593a67
12a9ab4b3627
135362b3ccb2
1429bcb06835
1516be0809b1
hexd018472bf

55860032191 has 2 divisors, whose sum is σ = 55860032192. Its totient is φ = 55860032190.

The previous prime is 55860032177. The next prime is 55860032197. The reversal of 55860032191 is 19123006855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55860032191 - 25 = 55860032159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55860032197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27930016095 + 27930016096.

It is an arithmetic number, because the mean of its divisors is an integer number (27930016096).

Almost surely, 255860032191 is an apocalyptic number.

55860032191 is a deficient number, since it is larger than the sum of its proper divisors (1).

55860032191 is an equidigital number, since it uses as much as digits as its factorization.

55860032191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 55860032191 in words is "fifty-five billion, eight hundred sixty million, thirty-two thousand, one hundred ninety-one".