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55064419 = 67821857
BaseRepresentation
bin1101001000001…
…1011101100011
310211121120011221
43102003131203
5103044030134
65244115511
71236016444
oct322033543
9124546157
1055064419
112909a793
1216535b97
13b53c5c7
1474552cb
154c7a5b4
hex3483763

55064419 has 4 divisors (see below), whose sum is σ = 55886344. Its totient is φ = 54242496.

The previous prime is 55064407. The next prime is 55064423. The reversal of 55064419 is 91446055.

55064419 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.

It is a cyclic number.

It is not a de Polignac number, because 55064419 - 215 = 55031651 is a prime.

It is a super-2 number, since 2×550644192 = 6064180479615122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55064519) 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, 410862 + ... + 410995.

It is an arithmetic number, because the mean of its divisors is an integer number (13971586).

Almost surely, 255064419 is an apocalyptic number.

55064419 is a deficient number, since it is larger than the sum of its proper divisors (821925).

55064419 is an equidigital number, since it uses as much as digits as its factorization.

55064419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821924.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 55064419 is about 7420.5403442067. The cubic root of 55064419 is about 380.4436623253.

The spelling of 55064419 in words is "fifty-five million, sixty-four thousand, four hundred nineteen".

Divisors: 1 67 821857 55064419