225618207 has 8 divisors (see below), whose sum is σ = 301166976. Its totient is φ = 150240792.

The previous prime is 225618187. The next prime is 225618209. The reversal of 225618207 is 702816522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225618207 - 2¹¹ = 225616159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225618209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39733 + ... + 45054.

It is an arithmetic number, because the mean of its divisors is an integer number (37645872).

Almost surely, 2^225618207 is an apocalyptic number.

225618207 is a deficient number, since it is larger than the sum of its proper divisors (75548769).

225618207 is an equidigital number, since it uses as much as digits as its factorization.

225618207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85677.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 225618207 is about 15020.5927646015. The cubic root of 225618207 is about 608.7767360609.

The spelling of 225618207 in words is "two hundred twenty-five million, six hundred eighteen thousand, two hundred seven".