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55355671 = 77907953
BaseRepresentation
bin1101001100101…
…0100100010111
310212011100201001
43103022210113
5103132340141
65254244131
71241341540
oct323124427
9125140631
1055355671
1129279598
1216656647
13b612047
1474cd4c7
154cd6a31
hex34ca917

55355671 has 4 divisors (see below), whose sum is σ = 63263632. Its totient is φ = 47447712.

The previous prime is 55355659. The next prime is 55355719. The reversal of 55355671 is 17655355.

55355671 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, and also an emirpimes, since its reverse is a distinct semiprime: 17655355 = 53531071.

It is a cyclic number.

It is not a de Polignac number, because 55355671 - 29 = 55355159 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 55355671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55355471) 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, 3953970 + ... + 3953983.

It is an arithmetic number, because the mean of its divisors is an integer number (15815908).

Almost surely, 255355671 is an apocalyptic number.

55355671 is a deficient number, since it is larger than the sum of its proper divisors (7907961).

55355671 is an equidigital number, since it uses as much as digits as its factorization.

55355671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7907960.

The product of its digits is 78750, while the sum is 37.

The square root of 55355671 is about 7440.1391788057. The cubic root of 55355671 is about 381.1132428609.

The spelling of 55355671 in words is "fifty-five million, three hundred fifty-five thousand, six hundred seventy-one".

Divisors: 1 7 7907953 55355671