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55233255 = 35711172997
BaseRepresentation
bin1101001010110…
…0101011100111
310211221010210010
43102230223213
5103114431010
65251501303
71240321620
oct322545347
9124833703
1055233255
11291a5620
12165b7833
13b59b3cc
14749aa47
154cb0620
hex34acae7

55233255 has 128 divisors (see below), whose sum is σ = 121927680. Its totient is φ = 20643840.

The previous prime is 55233253. The next prime is 55233271.

55233255 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55233255 - 21 = 55233253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55233251) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 569367 + ... + 569463.

It is an arithmetic number, because the mean of its divisors is an integer number (952560).

Almost surely, 255233255 is an apocalyptic number.

55233255 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55233255 is an abundant number, since it is smaller than the sum of its proper divisors (66694425).

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

55233255 is a wasteful number, since it uses less digits than its factorization.

55233255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169.

The product of its digits is 22500, while the sum is 30.

The square root of 55233255 is about 7431.9078977070. The cubic root of 55233255 is about 380.8320985723.

It can be divided in two parts, 5523 and 3255, that added together give a palindrome (8778).

The spelling of 55233255 in words is "fifty-five million, two hundred thirty-three thousand, two hundred fifty-five".

Divisors: 1 3 5 7 11 15 17 21 29 33 35 51 55 77 85 87 97 105 119 145 165 187 203 231 255 291 319 357 385 435 485 493 561 595 609 679 935 957 1015 1067 1155 1309 1455 1479 1595 1649 1785 2037 2233 2465 2805 2813 3045 3201 3395 3451 3927 4785 4947 5335 5423 6545 6699 7395 7469 8245 8439 10185 10353 11165 11543 14065 16005 16269 17255 18139 19635 19691 22407 24735 27115 30943 33495 34629 37345 37961 42195 47821 51765 54417 57715 59073 81345 90695 92829 98455 112035 113883 126973 143463 154715 173145 189805 216601 239105 272085 295365 334747 380919 464145 526031 569415 634865 649803 717315 1004241 1083005 1578093 1673735 1904595 2630155 3249015 3682217 5021205 7890465 11046651 18411085 55233255