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55500454505 = 516216847681
BaseRepresentation
bin110011101100000101…
…011011101001101001
312022020220220012201002
4303230011123221221
51402131104021010
641255131204345
74003232036156
oct635405335151
9168226805632
1055500454505
11215a0617a21
12a90aba66b5
1353064b2532
14298706522d
15169c7041a5
hexcec15ba69

55500454505 has 8 divisors (see below), whose sum is σ = 66641641224. Its totient is φ = 44372966400.

The previous prime is 55500454487. The next prime is 55500454561. The reversal of 55500454505 is 50545400555.

It can be written as a sum of positive squares in 4 ways, for example, as 30294446809 + 25206007696 = 174053^2 + 158764^2 .

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

It is not a de Polignac number, because 55500454505 - 26 = 55500454441 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 3415736 + ... + 3431945.

It is an arithmetic number, because the mean of its divisors is an integer number (8330205153).

Almost surely, 255500454505 is an apocalyptic number.

It is an amenable number.

55500454505 is a deficient number, since it is larger than the sum of its proper divisors (11141186719).

55500454505 is a wasteful number, since it uses less digits than its factorization.

55500454505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6849307.

The product of its (nonzero) digits is 250000, while the sum is 38.

The spelling of 55500454505 in words is "fifty-five billion, five hundred million, four hundred fifty-four thousand, five hundred five".

Divisors: 1 5 1621 8105 6847681 34238405 11100090901 55500454505