Search a number
-
+
55023665235 = 3571124330867
BaseRepresentation
bin110011001111101010…
…101000000001010011
312021000200201210210020
4303033222220001103
51400142024241420
641135540034523
73655352303040
oct631752500123
9167020653706
1055023665235
1121376474100
12a7b7392a43
13525b7960c6
14293d9d21c7
151670923340
hexccfaa8053

55023665235 has 48 divisors (see below), whose sum is σ = 110593045248. Its totient is φ = 22866972480.

The previous prime is 55023665231. The next prime is 55023665237. The reversal of 55023665235 is 53256632055.

It is not a de Polignac number, because 55023665235 - 22 = 55023665231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55023665231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2152729 + ... + 2178138.

It is an arithmetic number, because the mean of its divisors is an integer number (2304021776).

Almost surely, 255023665235 is an apocalyptic number.

55023665235 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55023665235 is an abundant number, since it is smaller than the sum of its proper divisors (55569380013).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55023665235 is a wasteful number, since it uses less digits than its factorization.

55023665235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4330904 (or 4330893 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 42.

The spelling of 55023665235 in words is "fifty-five billion, twenty-three million, six hundred sixty-five thousand, two hundred thirty-five".

Divisors: 1 3 5 7 11 15 21 33 35 55 77 105 121 165 231 363 385 605 847 1155 1815 2541 4235 12705 4330867 12992601 21654335 30316069 47639537 64963005 90948207 142918611 151580345 238197685 333476759 454741035 524034907 714593055 1000430277 1572104721 1667383795 2620174535 3668244349 5002151385 7860523605 11004733047 18341221745 55023665235