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55245185 = 567164911
BaseRepresentation
bin1101001010111…
…1100110000001
310211221202010222
43102233212001
5103120321220
65252032425
71240401452
oct322574601
9124852128
1055245185
1129203586
1216602715
13b5a3978
1474a1129
154cb3e25
hex34af981

55245185 has 8 divisors (see below), whose sum is σ = 67284096. Its totient is φ = 43536240.

The previous prime is 55245167. The next prime is 55245187. The reversal of 55245185 is 58154255.

55245185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55245185 - 28 = 55244929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55245187) 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 7 ways as a sum of consecutive naturals, for example, 82121 + ... + 82790.

It is an arithmetic number, because the mean of its divisors is an integer number (8410512).

Almost surely, 255245185 is an apocalyptic number.

It is an amenable number.

55245185 is a deficient number, since it is larger than the sum of its proper divisors (12038911).

55245185 is a wasteful number, since it uses less digits than its factorization.

55245185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164983.

The product of its digits is 40000, while the sum is 35.

The square root of 55245185 is about 7432.7104746519. The cubic root of 55245185 is about 380.8595156291.

The spelling of 55245185 in words is "fifty-five million, two hundred forty-five thousand, one hundred eighty-five".

Divisors: 1 5 67 335 164911 824555 11049037 55245185