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224550225 = 3852372
BaseRepresentation
bin11010110001001…
…01110101010001
3120122112100000000
431120211311101
5424441101400
634140520213
75364434244
oct1530456521
9518470000
10224550225
111058309a9
1263250069
13376a1873
1421b7325b
1514aa8600
hexd625d51

224550225 has 81 divisors (see below), whose sum is σ = 429234897. Its totient is φ = 116523360.

The previous prime is 224550223. The next prime is 224550233. The reversal of 224550225 is 522055422.

The square root of 224550225 is 14985.

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

224550225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 21316689 + 203233536 = 4617^2 + 14256^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 224550225 - 21 = 224550223 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 not an unprimeable number, because it can be changed into a prime (224550223) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 6068907 + ... + 6068943.

Almost surely, 2224550225 is an apocalyptic number.

224550225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

224550225 is the 14985-th square number.

224550225 is the 7493-rd centered octagonal number.

It is an amenable number.

224550225 is a deficient number, since it is larger than the sum of its proper divisors (204684672).

224550225 is an frugal number, since it uses more digits than its factorization.

224550225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The cubic root of 224550225 is about 607.8146518142.

The spelling of 224550225 in words is "two hundred twenty-four million, five hundred fifty thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 25 27 37 45 75 81 111 135 185 225 243 333 405 555 675 729 925 999 1215 1369 1665 2025 2187 2775 2997 3645 4107 4995 6075 6561 6845 8325 8991 10935 12321 14985 18225 20535 24975 26973 32805 34225 36963 44955 54675 61605 74925 80919 102675 110889 134865 164025 184815 224775 242757 308025 332667 404595 554445 674325 924075 998001 1213785 1663335 2022975 2772225 2994003 4990005 6068925 8316675 8982009 14970015 24950025 44910045 74850075 224550225