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225162555 = 3515010837
BaseRepresentation
bin11010110101110…
…11010100111011
3120200200102221220
431122323110323
5430120200210
634202003123
75402564412
oct1532732473
9520612856
10225162555
11106109a62
12634a64a3
13378574a7
1421c92479
1514b79c70
hexd6bb53b

225162555 has 8 divisors (see below), whose sum is σ = 360260112. Its totient is φ = 120086688.

The previous prime is 225162551. The next prime is 225162563. The reversal of 225162555 is 555261522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225162555 - 22 = 225162551 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (225162551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7505404 + ... + 7505433.

It is an arithmetic number, because the mean of its divisors is an integer number (45032514).

Almost surely, 2225162555 is an apocalyptic number.

225162555 is a deficient number, since it is larger than the sum of its proper divisors (135097557).

225162555 is a wasteful number, since it uses less digits than its factorization.

225162555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15010845.

The product of its digits is 30000, while the sum is 33.

The square root of 225162555 is about 15005.4175216820. The cubic root of 225162555 is about 608.3666372376.

The spelling of 225162555 in words is "two hundred twenty-five million, one hundred sixty-two thousand, five hundred fifty-five".

Divisors: 1 3 5 15 15010837 45032511 75054185 225162555