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55134511 = 211261301
BaseRepresentation
bin1101001001010…
…0100100101111
310211202010022221
43102110210233
5103103301021
65245420211
71236431005
oct322244457
9124663287
1055134511
1129138413
121656a667
13b565493
147472a75
154c91241
hex349492f

55134511 has 4 divisors (see below), whose sum is σ = 55396024. Its totient is φ = 54873000.

The previous prime is 55134439. The next prime is 55134517. The reversal of 55134511 is 11543155.

It is a happy number.

55134511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55134511 - 217 = 55003439 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 (55134517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130440 + ... + 130861.

It is an arithmetic number, because the mean of its divisors is an integer number (13849006).

Almost surely, 255134511 is an apocalyptic number.

55134511 is a deficient number, since it is larger than the sum of its proper divisors (261513).

55134511 is a wasteful number, since it uses less digits than its factorization.

55134511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261512.

The product of its digits is 1500, while the sum is 25.

The square root of 55134511 is about 7425.2616788905. The cubic root of 55134511 is about 380.6050172812.

Adding to 55134511 its reverse (11543155), we get a palindrome (66677666).

The spelling of 55134511 in words is "fifty-five million, one hundred thirty-four thousand, five hundred eleven".

Divisors: 1 211 261301 55134511