225655655447 has 4 divisors (see below), whose sum is σ = 225924614160. Its totient is φ = 225386696736.

The previous prime is 225655655443. The next prime is 225655655497. The reversal of 225655655447 is 744556556522.

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 225655655447 - 2² = 225655655443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225655655392 and 225655655401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225655655443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134478098 + ... + 134479775.

It is an arithmetic number, because the mean of its divisors is an integer number (56481153540).

Almost surely, 2^225655655447 is an apocalyptic number.

225655655447 is a deficient number, since it is larger than the sum of its proper divisors (268958713).

225655655447 is an equidigital number, since it uses as much as digits as its factorization.

225655655447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268958712.

The product of its digits is 50400000, while the sum is 56.

The spelling of 225655655447 in words is "two hundred twenty-five billion, six hundred fifty-five million, six hundred fifty-five thousand, four hundred forty-seven".