225676613 has 2 divisors, whose sum is σ = 225676614. Its totient is φ = 225676612.

The previous prime is 225676573. The next prime is 225676631. The reversal of 225676613 is 316676522.

Together with next prime (225676631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225660484 + 16129 = 15022^2 + 127^2 .

It is a cyclic number.

It is not a de Polignac number, because 225676613 - 2¹⁶ = 225611077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225676643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112838306 + 112838307.

It is an arithmetic number, because the mean of its divisors is an integer number (112838307).

Almost surely, 2^225676613 is an apocalyptic number.

It is an amenable number.

225676613 is a deficient number, since it is larger than the sum of its proper divisors (1).

225676613 is an equidigital number, since it uses as much as digits as its factorization.

225676613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 225676613 is about 15022.5368363669. The cubic root of 225676613 is about 608.8292630663.

Subtracting 225676613 from its reverse (316676522), we obtain a palindrome (90999909).

The spelling of 225676613 in words is "two hundred twenty-five million, six hundred seventy-six thousand, six hundred thirteen".