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2755550200225 = 523319972
BaseRepresentation
bin101000000110010011100…
…101110100000110100001
3100202102120000211210201011
4220012103211310012201
5330121331322401400
65505514323540521
7403040050146064
oct50062345640641
910672500753634
102755550200225
11972693284069
1238606422a741
1316cb025b0274
14975256888db
154ba28d138ba
hex281939741a1

2755550200225 has 9 divisors (see below), whose sum is σ = 3416892540217. Its totient is φ = 2204433520240.

The previous prime is 2755550200223. The next prime is 2755550200253. The reversal of 2755550200225 is 5220020555572.

It is a happy number.

The square root of 2755550200225 is 1659985.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1396516518049 + 1359033682176 = 1181743^2 + 1165776^2 .

It is not a de Polignac number, because 2755550200225 - 21 = 2755550200223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2755550200223) 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 8 ways as a sum of consecutive naturals, for example, 8133927 + ... + 8465923.

Almost surely, 22755550200225 is an apocalyptic number.

2755550200225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2755550200225 is the 1659985-th square number.

2755550200225 is the 829993-rd centered octagonal number.

It is an amenable number.

2755550200225 is a deficient number, since it is larger than the sum of its proper divisors (661342339992).

2755550200225 is an frugal number, since it uses more digits than its factorization.

2755550200225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664004 (or 332002 counting only the distinct ones).

The product of its (nonzero) digits is 350000, while the sum is 40.

Adding to 2755550200225 its reverse (5220020555572), we get a palindrome (7975570755797).

The spelling of 2755550200225 in words is "two trillion, seven hundred fifty-five billion, five hundred fifty million, two hundred thousand, two hundred twenty-five".

Divisors: 1 5 25 331997 1659985 8299925 110222008009 551110040045 2755550200225