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55144853 = 61989087
BaseRepresentation
bin1101001001011…
…1000110010101
310211202122111222
43102113012111
5103104113403
65245540125
71236503111
oct322270625
9124678458
1055144853
1129145165
1216574645
13b56a0ba
147476741
154c94338
hex3497195

55144853 has 4 divisors (see below), whose sum is σ = 55234560. Its totient is φ = 55055148.

The previous prime is 55144847. The next prime is 55144871. The reversal of 55144853 is 35844155.

55144853 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55144853 - 216 = 55079317 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 (55144813) 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, 43925 + ... + 45162.

It is an arithmetic number, because the mean of its divisors is an integer number (13808640).

Almost surely, 255144853 is an apocalyptic number.

It is an amenable number.

55144853 is a deficient number, since it is larger than the sum of its proper divisors (89707).

55144853 is an equidigital number, since it uses as much as digits as its factorization.

55144853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89706.

The product of its digits is 48000, while the sum is 35.

The square root of 55144853 is about 7425.9580526690. The cubic root of 55144853 is about 380.6288134536.

The spelling of 55144853 in words is "fifty-five million, one hundred forty-four thousand, eight hundred fifty-three".

Divisors: 1 619 89087 55144853