225540345 has 32 divisors (see below), whose sum is σ = 382602240. Its totient is φ = 113253120.

The previous prime is 225540331. The next prime is 225540349. The reversal of 225540345 is 543045522.

It is not a de Polignac number, because 225540345 - 2²¹ = 223443193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225540349) 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 31 ways as a sum of consecutive naturals, for example, 10651 + ... + 23759.

It is an arithmetic number, because the mean of its divisors is an integer number (11956320).

Almost surely, 2^225540345 is an apocalyptic number.

It is an amenable number.

225540345 is a deficient number, since it is larger than the sum of its proper divisors (157061895).

225540345 is a wasteful number, since it uses less digits than its factorization.

225540345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13185.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 225540345 is about 15018.0006991610. Note that the first 3 decimals coincide. The cubic root of 225540345 is about 608.7066973458.

Adding to 225540345 its reverse (543045522), we get a palindrome (768585867).

The spelling of 225540345 in words is "two hundred twenty-five million, five hundred forty thousand, three hundred forty-five".