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225904201 is a prime number
BaseRepresentation
bin11010111011100…
…00011001001001
3120202002010022021
431131300121021
5430312413301
634225524441
75412103555
oct1535603111
9522063267
10225904201
11106576196
12637a3721
1337a56c33
1422006865
1514c748a1
hexd770649

225904201 has 2 divisors, whose sum is σ = 225904202. Its totient is φ = 225904200.

The previous prime is 225904199. The next prime is 225904207. The reversal of 225904201 is 102409522.

225904201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117744201 + 108160000 = 10851^2 + 10400^2 .

It is a cyclic number.

It is not a de Polignac number, because 225904201 - 21 = 225904199 is a prime.

Together with 225904199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (225904207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112952100 + 112952101.

It is an arithmetic number, because the mean of its divisors is an integer number (112952101).

Almost surely, 2225904201 is an apocalyptic number.

It is an amenable number.

225904201 is a deficient number, since it is larger than the sum of its proper divisors (1).

225904201 is an equidigital number, since it uses as much as digits as its factorization.

225904201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 225904201 is about 15030.1098133048. The cubic root of 225904201 is about 609.0338562376.

The spelling of 225904201 in words is "two hundred twenty-five million, nine hundred four thousand, two hundred one".