225655655647 has 2 divisors, whose sum is σ = 225655655648. Its totient is φ = 225655655646.

The previous prime is 225655655609. The next prime is 225655655677. The reversal of 225655655647 is 746556556522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225655655647 - 2²⁷ = 225521437919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225655655591 and 225655655600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225655655677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112827827823 + 112827827824.

It is an arithmetic number, because the mean of its divisors is an integer number (112827827824).

Almost surely, 2^225655655647 is an apocalyptic number.

225655655647 is a deficient number, since it is larger than the sum of its proper divisors (1).

225655655647 is an equidigital number, since it uses as much as digits as its factorization.

225655655647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600000, while the sum is 58.

The spelling of 225655655647 in words is "two hundred twenty-five billion, six hundred fifty-five million, six hundred fifty-five thousand, six hundred forty-seven".