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55165254755 = 5132114022257
BaseRepresentation
bin110011011000000110…
…101111110001100011
312021101120011022002112
4303120012233301203
51400434301123010
641201554505535
73662021633342
oct633006576143
9167346138075
1055165254755
1121439391436
12a8368952ab
135281c0baa0
14295472bb59
15167d090a05
hexcd81afc63

55165254755 has 16 divisors (see below), whose sum is σ = 71628370464. Its totient is φ = 40544340480.

The previous prime is 55165254649. The next prime is 55165254769. The reversal of 55165254755 is 55745256155.

It is not a de Polignac number, because 55165254755 - 218 = 55164992611 is a prime.

It is a super-2 number, since 2×551652547552 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1997414 + ... + 2024843.

It is an arithmetic number, because the mean of its divisors is an integer number (4476773154).

Almost surely, 255165254755 is an apocalyptic number.

55165254755 is a deficient number, since it is larger than the sum of its proper divisors (16463115709).

55165254755 is a wasteful number, since it uses less digits than its factorization.

55165254755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022486.

The product of its digits is 5250000, while the sum is 50.

The spelling of 55165254755 in words is "fifty-five billion, one hundred sixty-five million, two hundred fifty-four thousand, seven hundred fifty-five".

Divisors: 1 5 13 65 211 1055 2743 13715 4022257 20111285 52289341 261446705 848696227 4243481135 11033050951 55165254755