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55214411 = 77887773
BaseRepresentation
bin1101001010100…
…0000101001011
310211220011221012
43102220011023
5103113330121
65251234135
71240212650
oct322500513
9124804835
1055214411
112919244a
12165a894b
13b592965
147493c27
154ca9c5b
hex34a814b

55214411 has 4 divisors (see below), whose sum is σ = 63102192. Its totient is φ = 47326632.

The previous prime is 55214407. The next prime is 55214447. The reversal of 55214411 is 11441255.

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 55214411 - 22 = 55214407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55214111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3943880 + ... + 3943893.

It is an arithmetic number, because the mean of its divisors is an integer number (15775548).

Almost surely, 255214411 is an apocalyptic number.

55214411 is a deficient number, since it is larger than the sum of its proper divisors (7887781).

55214411 is an equidigital number, since it uses as much as digits as its factorization.

55214411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7887780.

The product of its digits is 800, while the sum is 23.

The square root of 55214411 is about 7430.6400128118. The cubic root of 55214411 is about 380.7887839885.

Adding to 55214411 its reverse (11441255), we get a palindrome (66655666).

The spelling of 55214411 in words is "fifty-five million, two hundred fourteen thousand, four hundred eleven".

Divisors: 1 7 7887773 55214411