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55858911287 = 1732591008229
BaseRepresentation
bin110100000001011100…
…110101100000110111
312100011220101200222012
4310001130311200313
51403344340130122
641354454154435
74015143624524
oct640134654067
9170156350865
1055858911287
11217649988a3
12a9ab052a1b
135362839a3a
1429bc8d414b
1516bde0d7e2
hexd01735837

55858911287 has 8 divisors (see below), whose sum is σ = 59162936400. Its totient is φ = 52556909184.

The previous prime is 55858911247. The next prime is 55858911341. The reversal of 55858911287 is 78211985855.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55858911287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55858911247) 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 in 7 ways as a sum of consecutive naturals, for example, 448712 + ... + 559517.

It is an arithmetic number, because the mean of its divisors is an integer number (7395367050).

Almost surely, 255858911287 is an apocalyptic number.

55858911287 is a deficient number, since it is larger than the sum of its proper divisors (3304025113).

55858911287 is a wasteful number, since it uses less digits than its factorization.

55858911287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011505.

The product of its digits is 8064000, while the sum is 59.

The spelling of 55858911287 in words is "fifty-five billion, eight hundred fifty-eight million, nine hundred eleven thousand, two hundred eighty-seven".

Divisors: 1 17 3259 55403 1008229 17139893 3285818311 55858911287