225611617 has 8 divisors (see below), whose sum is σ = 281282112. Its totient is φ = 175801200.

The previous prime is 225611593. The next prime is 225611627. The reversal of 225611617 is 716116522.

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

It is a cyclic number.

It is not a de Polignac number, because 225611617 - 2¹⁹ = 225087329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225611627) 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, 1464934 + ... + 1465087.

It is an arithmetic number, because the mean of its divisors is an integer number (35160264).

Almost surely, 2^225611617 is an apocalyptic number.

It is an amenable number.

225611617 is a deficient number, since it is larger than the sum of its proper divisors (55670495).

225611617 is a wasteful number, since it uses less digits than its factorization.

225611617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930039.

The product of its digits is 5040, while the sum is 31.

The square root of 225611617 is about 15020.3733974892. The cubic root of 225611617 is about 608.7708088239.

The spelling of 225611617 in words is "two hundred twenty-five million, six hundred eleven thousand, six hundred seventeen".