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225045455 = 52311811657
BaseRepresentation
bin11010110100111…
…10101111001111
3120200110111022212
431122132233033
5430102423310
634155301035
75401566125
oct1532365717
9520414285
10225045455
11106039a88
126344a77b
13378160bb
1421c61915
1514b55205
hexd69ebcf

225045455 has 16 divisors (see below), whose sum is σ = 282204864. Its totient is φ = 171959040.

The previous prime is 225045451. The next prime is 225045463. The reversal of 225045455 is 554540522.

It is not a de Polignac number, because 225045455 - 22 = 225045451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225045451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134987 + ... + 136643.

It is an arithmetic number, because the mean of its divisors is an integer number (17637804).

Almost surely, 2225045455 is an apocalyptic number.

225045455 is a deficient number, since it is larger than the sum of its proper divisors (57159409).

225045455 is a wasteful number, since it uses less digits than its factorization.

225045455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866.

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 225045455 is about 15001.5150901501. The cubic root of 225045455 is about 608.2611547983.

Adding to 225045455 its reverse (554540522), we get a palindrome (779585977).

The spelling of 225045455 in words is "two hundred twenty-five million, forty-five thousand, four hundred fifty-five".

Divisors: 1 5 23 115 1181 1657 5905 8285 27163 38111 135815 190555 1956917 9784585 45009091 225045455