225444611 has 4 divisors (see below), whose sum is σ = 257650992. Its totient is φ = 193238232.

The previous prime is 225444601. The next prime is 225444641. The reversal of 225444611 is 116444522.

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

It is a cyclic number.

It is not a de Polignac number, because 225444611 - 2⁶ = 225444547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225444601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16103180 + ... + 16103193.

It is an arithmetic number, because the mean of its divisors is an integer number (64412748).

Almost surely, 2^225444611 is an apocalyptic number.

225444611 is a deficient number, since it is larger than the sum of its proper divisors (32206381).

225444611 is an equidigital number, since it uses as much as digits as its factorization.

225444611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32206380.

The product of its digits is 7680, while the sum is 29.

The square root of 225444611 is about 15014.8130524492. The cubic root of 225444611 is about 608.6205602454.

The spelling of 225444611 in words is "two hundred twenty-five million, four hundred forty-four thousand, six hundred eleven".