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55255255 = 511291331
BaseRepresentation
bin1101001011001…
…0000011010111
310211222020221221
43102302003113
5103121132010
65252151211
71240443016
oct322620327
9124866857
1055255255
1129210100
1216608507
13b5a8423
1474a4a7d
154cb6dda
hex34b20d7

55255255 has 12 divisors (see below), whose sum is σ = 72882936. Its totient is φ = 40185200.

The previous prime is 55255243. The next prime is 55255259.

55255255 is nontrivially palindromic in base 10.

55255255 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 55255255 - 213 = 55247063 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 55255255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55255259) 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 11 ways as a sum of consecutive naturals, for example, 45061 + ... + 46270.

It is an arithmetic number, because the mean of its divisors is an integer number (6073578).

Almost surely, 255255255 is an apocalyptic number.

55255255 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55255255 is a deficient number, since it is larger than the sum of its proper divisors (17627681).

55255255 is a wasteful number, since it uses less digits than its factorization.

55255255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91358 (or 91347 counting only the distinct ones).

The product of its digits is 62500, while the sum is 34.

The square root of 55255255 is about 7433.3878548075. The cubic root of 55255255 is about 380.8826550352.

The spelling of 55255255 in words is "fifty-five million, two hundred fifty-five thousand, two hundred fifty-five".

Divisors: 1 5 11 55 121 605 91331 456655 1004641 5023205 11051051 55255255