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55068587 = 77866941
BaseRepresentation
bin1101001000010…
…0011110101011
310211121202220022
43102010132223
5103044143322
65244151055
71236034550
oct322043653
9124552808
1055068587
11290a2932
121653848b
13b541482
147456a27
154c7b942
hex34847ab

55068587 has 4 divisors (see below), whose sum is σ = 62935536. Its totient is φ = 47201640.

The previous prime is 55068581. The next prime is 55068589. The reversal of 55068587 is 78586055.

55068587 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 55068587 - 212 = 55064491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55068581) 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, 3933464 + ... + 3933477.

It is an arithmetic number, because the mean of its divisors is an integer number (15733884).

Almost surely, 255068587 is an apocalyptic number.

55068587 is a deficient number, since it is larger than the sum of its proper divisors (7866949).

55068587 is an equidigital number, since it uses as much as digits as its factorization.

55068587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7866948.

The product of its (nonzero) digits is 336000, while the sum is 44.

The square root of 55068587 is about 7420.8211809745. The cubic root of 55068587 is about 380.4532610778.

It can be divided in two parts, 55068 and 587, that added together give a palindrome (55655).

The spelling of 55068587 in words is "fifty-five million, sixty-eight thousand, five hundred eighty-seven".

Divisors: 1 7 7866941 55068587