225688045 has 32 divisors (see below), whose sum is σ = 303730560. Its totient is φ = 159594240.

The previous prime is 225688027. The next prime is 225688051. The reversal of 225688045 is 540886522.

It is not a de Polignac number, because 225688045 - 2²³ = 217299437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225687989 and 225688007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404907 + ... + 405463.

It is an arithmetic number, because the mean of its divisors is an integer number (9491580).

Almost surely, 2^225688045 is an apocalyptic number.

It is an amenable number.

225688045 is a deficient number, since it is larger than the sum of its proper divisors (78042515).

225688045 is a wasteful number, since it uses less digits than its factorization.

225688045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765.

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 225688045 is about 15022.9173265381. The cubic root of 225688045 is about 608.8395432907.

The spelling of 225688045 in words is "two hundred twenty-five million, six hundred eighty-eight thousand, forty-five".