225807345 has 40 divisors (see below), whose sum is σ = 428604264. Its totient is φ = 113342976.

The previous prime is 225807341. The next prime is 225807349. The reversal of 225807345 is 543708522.

225807345 is a `hidden beast` number, since 2 + 2 + 580 + 73 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (225807341) and next prime (225807349).

It can be written as a sum of positive squares in 4 ways, for example, as 122744241 + 103063104 = 11079^2 + 10152^2 .

It is not a de Polignac number, because 225807345 - 2² = 225807341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225807341) 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 39 ways as a sum of consecutive naturals, for example, 9514 + ... + 23283.

Almost surely, 2^225807345 is an apocalyptic number.

It is an amenable number.

225807345 is a deficient number, since it is larger than the sum of its proper divisors (202796919).

225807345 is a wasteful number, since it uses less digits than its factorization.

225807345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32831 (or 32822 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 225807345 is about 15026.8874022533. The cubic root of 225807345 is about 608.9468030895.

The spelling of 225807345 in words is "two hundred twenty-five million, eight hundred seven thousand, three hundred forty-five".