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55854747871 = 139744294011
BaseRepresentation
bin110100000001001100…
…111101000011011111
312100011121120011211121
4310001030331003133
51403342303412441
641354225031411
74015063344346
oct640114750337
9170147504747
1055854747871
112176260485a
12a9a9785567
135361a0c990
1429bc12cb5d
1516bd889dd1
hexd0133d0df

55854747871 has 8 divisors (see below), whose sum is σ = 60771384464. Its totient is φ = 51026699520.

The previous prime is 55854747797. The next prime is 55854747889. The reversal of 55854747871 is 17874745855.

It is a happy number.

55854747871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55854747871 - 221 = 55852650719 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 (55854747071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22145745 + ... + 22148266.

It is an arithmetic number, because the mean of its divisors is an integer number (7596423058).

Almost surely, 255854747871 is an apocalyptic number.

55854747871 is a deficient number, since it is larger than the sum of its proper divisors (4916636593).

55854747871 is a wasteful number, since it uses less digits than its factorization.

55854747871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44294121.

The product of its digits is 43904000, while the sum is 61.

The spelling of 55854747871 in words is "fifty-five billion, eight hundred fifty-four million, seven hundred forty-seven thousand, eight hundred seventy-one".

Divisors: 1 13 97 1261 44294011 575822143 4296519067 55854747871