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55064205 = 345719423
BaseRepresentation
bin1101001000001…
…1011010001101
310211121112220000
43102003122031
5103044023310
65244114513
71236016020
oct322033215
9124545800
1055064205
112909a609
1216535a39
13b53c491
1474551b7
154c7a4c0
hex348368d

55064205 has 40 divisors (see below), whose sum is σ = 112814592. Its totient is φ = 25170912.

The previous prime is 55064203. The next prime is 55064227. The reversal of 55064205 is 50246055.

It is not a de Polignac number, because 55064205 - 21 = 55064203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55064203) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6877 + ... + 12546.

Almost surely, 255064205 is an apocalyptic number.

It is an amenable number.

55064205 is an abundant number, since it is smaller than the sum of its proper divisors (57750387).

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

55064205 is a wasteful number, since it uses less digits than its factorization.

55064205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19447 (or 19438 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 55064205 is about 7420.5259247576. The cubic root of 55064205 is about 380.4431694780.

The spelling of 55064205 in words is "fifty-five million, sixty-four thousand, two hundred five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 81 105 135 189 315 405 567 945 2835 19423 58269 97115 135961 174807 291345 407883 524421 679805 874035 1223649 1573263 2039415 2622105 3670947 6118245 7866315 11012841 18354735 55064205