225342765 has 48 divisors (see below), whose sum is σ = 411059376. Its totient is φ = 114048000.

The previous prime is 225342763. The next prime is 225342797. The reversal of 225342765 is 567243522.

225342765 is a `hidden beast` number, since 225 + 3 + 427 + 6 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 17464041 + 207878724 = 4179^2 + 14418^2 .

It is not a de Polignac number, because 225342765 - 2¹ = 225342763 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225342763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66615 + ... + 69915.

It is an arithmetic number, because the mean of its divisors is an integer number (8563737).

Almost surely, 2^225342765 is an apocalyptic number.

It is an amenable number.

225342765 is a deficient number, since it is larger than the sum of its proper divisors (185716611).

225342765 is a wasteful number, since it uses less digits than its factorization.

225342765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390 (or 3387 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 225342765 is about 15011.4211519096. The cubic root of 225342765 is about 608.5288970711.

The spelling of 225342765 in words is "two hundred twenty-five million, three hundred forty-two thousand, seven hundred sixty-five".