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2225225 = 5289009
BaseRepresentation
bin1000011111010001001001
311012001102202
420133101021
51032201400
6115405545
724625352
oct10372111
94161382
102225225
11128a932
128b38b5
135cbb02
1441cd29
152de4d5
hex21f449

2225225 has 6 divisors (see below), whose sum is σ = 2759310. Its totient is φ = 1780160.

The previous prime is 2225221. The next prime is 2225231. The reversal of 2225225 is 5225222.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 183184 + 2042041 = 428^2 + 1429^2 .

It is not a de Polignac number, because 2225225 - 22 = 2225221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2225197 and 2225206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44480 + ... + 44529.

It is an arithmetic number, because the mean of its divisors is an integer number (459885).

22225225 is an apocalyptic number.

2225225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2225225 is a deficient number, since it is larger than the sum of its proper divisors (534085).

2225225 is an equidigital number, since it uses as much as digits as its factorization.

2225225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89019 (or 89014 counting only the distinct ones).

The product of its digits is 800, while the sum is 20.

The square root of 2225225 is about 1491.7188072824. The cubic root of 2225225 is about 130.5543389723.

The spelling of 2225225 in words is "two million, two hundred twenty-five thousand, two hundred twenty-five".

Divisors: 1 5 25 89009 445045 2225225