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55048913585 = 562211769777
BaseRepresentation
bin110011010001001010…
…111100001010110001
312021002110020120000022
4303101022330022301
51400220010213320
641142241133225
73656110021301
oct632112741261
9167073216008
1055048913585
1121389749606
12a80392a215
135263a96363
1429430c5601
151672c5e325
hexcd12bc2b1

55048913585 has 8 divisors (see below), whose sum is σ = 66069352296. Its totient is φ = 44032026880.

The previous prime is 55048913561. The next prime is 55048913587. The reversal of 55048913585 is 58531984055.

It can be written as a sum of positive squares in 4 ways, for example, as 726356401 + 54322557184 = 26951^2 + 233072^2 .

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

It is not a de Polignac number, because 55048913585 - 220 = 55047865009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55048913587) 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, 853784 + ... + 915993.

It is an arithmetic number, because the mean of its divisors is an integer number (8258669037).

Almost surely, 255048913585 is an apocalyptic number.

It is an amenable number.

55048913585 is a deficient number, since it is larger than the sum of its proper divisors (11020438711).

55048913585 is a wasteful number, since it uses less digits than its factorization.

55048913585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776003.

The product of its (nonzero) digits is 4320000, while the sum is 53.

The spelling of 55048913585 in words is "fifty-five billion, forty-eight million, nine hundred thirteen thousand, five hundred eighty-five".

Divisors: 1 5 6221 31105 1769777 8848885 11009782717 55048913585