225898611 has 4 divisors (see below), whose sum is σ = 301198152. Its totient is φ = 150599072.

The previous prime is 225898609. The next prime is 225898613. The reversal of 225898611 is 116898522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (225898609) and next prime (225898613).

It is a cyclic number.

It is not a de Polignac number, because 225898611 - 2¹ = 225898609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225898613) 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 3 ways as a sum of consecutive naturals, for example, 37649766 + ... + 37649771.

It is an arithmetic number, because the mean of its divisors is an integer number (75299538).

Almost surely, 2^225898611 is an apocalyptic number.

225898611 is a deficient number, since it is larger than the sum of its proper divisors (75299541).

225898611 is an equidigital number, since it uses as much as digits as its factorization.

225898611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75299540.

The product of its digits is 69120, while the sum is 42.

The square root of 225898611 is about 15029.9238521025. The cubic root of 225898611 is about 609.0288326814.

The spelling of 225898611 in words is "two hundred twenty-five million, eight hundred ninety-eight thousand, six hundred eleven".