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55055119 = 77865017
BaseRepresentation
bin1101001000000…
…1001100001111
310211121002102111
43102001030033
5103043230434
65244004451
71235650360
oct322011417
9124532374
1055055119
11290937a9
1216530727
13b5382c2
147451b67
154c77964
hex348130f

55055119 has 4 divisors (see below), whose sum is σ = 62920144. Its totient is φ = 47190096.

The previous prime is 55055111. The next prime is 55055167. The reversal of 55055119 is 91155055.

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 55055119 - 23 = 55055111 is a prime.

It is a super-2 number, since 2×550551192 = 6062132256208322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055111) 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, 3932502 + ... + 3932515.

It is an arithmetic number, because the mean of its divisors is an integer number (15730036).

Almost surely, 255055119 is an apocalyptic number.

55055119 is a deficient number, since it is larger than the sum of its proper divisors (7865025).

55055119 is an equidigital number, since it uses as much as digits as its factorization.

55055119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7865024.

The product of its (nonzero) digits is 5625, while the sum is 31.

The square root of 55055119 is about 7419.9136787432. The cubic root of 55055119 is about 380.4222430172.

The spelling of 55055119 in words is "fifty-five million, fifty-five thousand, one hundred nineteen".

Divisors: 1 7 7865017 55055119