225262665 has 24 divisors (see below), whose sum is σ = 413424648. Its totient is φ = 113072640.

The previous prime is 225262663. The next prime is 225262669. The reversal of 225262665 is 566262522.

225262665 is a `hidden beast` number, since 2 + 25 + 2 + 626 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9437184 + 215825481 = 3072^2 + 14691^2 .

It is not a de Polignac number, because 225262665 - 2¹ = 225262663 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225262663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146466 + ... + 147995.

It is an arithmetic number, because the mean of its divisors is an integer number (17226027).

Almost surely, 2^225262665 is an apocalyptic number.

It is an amenable number.

225262665 is a deficient number, since it is larger than the sum of its proper divisors (188161983).

225262665 is a wasteful number, since it uses less digits than its factorization.

225262665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294489 (or 294486 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 225262665 is about 15008.7529461978. The cubic root of 225262665 is about 608.4567862711.

The spelling of 225262665 in words is "two hundred twenty-five million, two hundred sixty-two thousand, six hundred sixty-five".