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55137671 = 291901299
BaseRepresentation
bin1101001001010…
…1010110000111
310211202021122222
43102111112013
5103103401141
65245442555
71236443141
oct322252607
9124667588
1055137671
112913a826
121657045b
13b566a54
147473c91
154c9214b
hex3495587

55137671 has 4 divisors (see below), whose sum is σ = 57039000. Its totient is φ = 53236344.

The previous prime is 55137637. The next prime is 55137673. The reversal of 55137671 is 17673155.

55137671 is nontrivially palindromic in base 4.

55137671 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 not a de Polignac number, because 55137671 - 210 = 55136647 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 (55137673) 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, 950621 + ... + 950678.

It is an arithmetic number, because the mean of its divisors is an integer number (14259750).

Almost surely, 255137671 is an apocalyptic number.

55137671 is a deficient number, since it is larger than the sum of its proper divisors (1901329).

55137671 is a wasteful number, since it uses less digits than its factorization.

55137671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901328.

The product of its digits is 22050, while the sum is 35.

The square root of 55137671 is about 7425.4744629552. The cubic root of 55137671 is about 380.6122885217.

The spelling of 55137671 in words is "fifty-five million, one hundred thirty-seven thousand, six hundred seventy-one".

Divisors: 1 29 1901299 55137671