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55230775 = 522209231
BaseRepresentation
bin1101001010110…
…0000100110111
310211221000101021
43102230010313
5103114341100
65251442011
71240311445
oct322540467
9124830337
1055230775
11291a3776
12165b6307
13b59a242
147499b95
154caea1a
hex34ac137

55230775 has 6 divisors (see below), whose sum is σ = 68486192. Its totient is φ = 44184600.

The previous prime is 55230709. The next prime is 55230821. The reversal of 55230775 is 57703255.

55230775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55230775 - 27 = 55230647 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 55230775.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1104591 + ... + 1104640.

Almost surely, 255230775 is an apocalyptic number.

55230775 is a deficient number, since it is larger than the sum of its proper divisors (13255417).

55230775 is a wasteful number, since it uses less digits than its factorization.

55230775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209241 (or 2209236 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 55230775 is about 7431.7410476954. The cubic root of 55230775 is about 380.8263986382.

The spelling of 55230775 in words is "fifty-five million, two hundred thirty thousand, seven hundred seventy-five".

Divisors: 1 5 25 2209231 11046155 55230775