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55565101 = 1910328393
BaseRepresentation
bin1101001111110…
…1101100101101
310212112222222201
43103331230231
5103211040401
65302541501
71243203244
oct323755455
9125488881
1055565101
1129401979
1216737891
13b686477
14754595b
154d28b01
hex34fdb2d

55565101 has 8 divisors (see below), whose sum is σ = 59059520. Its totient is φ = 52127712.

The previous prime is 55565099. The next prime is 55565117. The reversal of 55565101 is 10156555.

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 55565101 - 21 = 55565099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55565101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55565161) 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, 12240 + ... + 16153.

It is an arithmetic number, because the mean of its divisors is an integer number (7382440).

Almost surely, 255565101 is an apocalyptic number.

It is an amenable number.

55565101 is a deficient number, since it is larger than the sum of its proper divisors (3494419).

55565101 is a wasteful number, since it uses less digits than its factorization.

55565101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28515.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 55565101 is about 7454.2002253763. The cubic root of 55565101 is about 381.5932665454.

It can be divided in two parts, 555 and 65101, that added together give a palindrome (65656).

The spelling of 55565101 in words is "fifty-five million, five hundred sixty-five thousand, one hundred one".

Divisors: 1 19 103 1957 28393 539467 2924479 55565101