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55853227 = 311801717
BaseRepresentation
bin1101010100010…
…0000010101011
310220002122020001
43111010002223
5103244300402
65313043431
71245513253
oct325040253
9126078201
1055853227
11295893a1
1216856577
13b757661
1475bc963
154d84187
hex35440ab

55853227 has 4 divisors (see below), whose sum is σ = 57654976. Its totient is φ = 54051480.

The previous prime is 55853183. The next prime is 55853257. The reversal of 55853227 is 72235855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72235855 = 514447171.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55853227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55853257) 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, 900828 + ... + 900889.

It is an arithmetic number, because the mean of its divisors is an integer number (14413744).

Almost surely, 255853227 is an apocalyptic number.

55853227 is a deficient number, since it is larger than the sum of its proper divisors (1801749).

55853227 is a wasteful number, since it uses less digits than its factorization.

55853227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801748.

The product of its digits is 84000, while the sum is 37.

The square root of 55853227 is about 7473.5016558505. The cubic root of 55853227 is about 382.2516981048.

The spelling of 55853227 in words is "fifty-five million, eight hundred fifty-three thousand, two hundred twenty-seven".

Divisors: 1 31 1801717 55853227