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275062225 = 523121072
BaseRepresentation
bin10000011001010…
…001110111010001
3201011120121102211
4100121101313101
51030403442400
643143312121
76546663454
oct2031216721
9634517384
10275062225
111312a1359
127814b641
1344ca9019
142876149b
1519234dba
hex10651dd1

275062225 has 27 divisors (see below), whose sum is σ = 355759131. Its totient is φ = 210961200.

The previous prime is 275062223. The next prime is 275062231. The reversal of 275062225 is 522260572.

The square root of 275062225 is 16585.

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

It can be written as a sum of positive squares in only one way, i.e., 99022401 + 176039824 = 9951^2 + 13268^2 .

It is not a de Polignac number, because 275062225 - 21 = 275062223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (275062223) 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 26 ways as a sum of consecutive naturals, for example, 2570622 + ... + 2570728.

Almost surely, 2275062225 is an apocalyptic number.

275062225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

275062225 is the 16585-th square number.

275062225 is the 8293-rd centered octagonal number.

It is an amenable number.

275062225 is a deficient number, since it is larger than the sum of its proper divisors (80696906).

275062225 is an equidigital number, since it uses as much as digits as its factorization.

275062225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The cubic root of 275062225 is about 650.3447677890.

The spelling of 275062225 in words is "two hundred seventy-five million, sixty-two thousand, two hundred twenty-five".

Divisors: 1 5 25 31 107 155 535 775 961 2675 3317 4805 11449 16585 24025 57245 82925 102827 286225 354919 514135 1774595 2570675 8872975 11002489 55012445 275062225