225611552215 has 16 divisors (see below), whose sum is σ = 310218006528. Its totient is φ = 154301125536.

The previous prime is 225611552197. The next prime is 225611552219. The reversal of 225611552215 is 512255116522.

It is a cyclic number.

It is not a de Polignac number, because 225611552215 - 2¹⁷ = 225611421143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225611552219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8401797 + ... + 8428606.

It is an arithmetic number, because the mean of its divisors is an integer number (19388625408).

Almost surely, 2^225611552215 is an apocalyptic number.

225611552215 is a deficient number, since it is larger than the sum of its proper divisors (84606454313).

225611552215 is a wasteful number, since it uses less digits than its factorization.

225611552215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16830798.

The product of its digits is 60000, while the sum is 37.

Adding to 225611552215 its reverse (512255116522), we get a palindrome (737866668737).

The spelling of 225611552215 in words is "two hundred twenty-five billion, six hundred eleven million, five hundred fifty-two thousand, two hundred fifteen".