225545641 has 2 divisors, whose sum is σ = 225545642. Its totient is φ = 225545640.

The previous prime is 225545603. The next prime is 225545653. The reversal of 225545641 is 146545522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139334416 + 86211225 = 11804^2 + 9285^2 .

It is a cyclic number.

It is not a de Polignac number, because 225545641 - 2⁹ = 225545129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225545597 and 225545606.

It is not a weakly prime, because it can be changed into another prime (225545741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112772820 + 112772821.

It is an arithmetic number, because the mean of its divisors is an integer number (112772821).

Almost surely, 2^225545641 is an apocalyptic number.

It is an amenable number.

225545641 is a deficient number, since it is larger than the sum of its proper divisors (1).

225545641 is an equidigital number, since it uses as much as digits as its factorization.

225545641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48000, while the sum is 34.

The square root of 225545641 is about 15018.1770198650. The cubic root of 225545641 is about 608.7114617342.

The spelling of 225545641 in words is "two hundred twenty-five million, five hundred forty-five thousand, six hundred forty-one".