225526349 has 2 divisors, whose sum is σ = 225526350. Its totient is φ = 225526348.

The previous prime is 225526307. The next prime is 225526373. The reversal of 225526349 is 943625522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221801449 + 3724900 = 14893^2 + 1930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225526349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225526949) 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 as a sum of consecutive naturals, namely, 112763174 + 112763175.

It is an arithmetic number, because the mean of its divisors is an integer number (112763175).

Almost surely, 2^225526349 is an apocalyptic number.

It is an amenable number.

225526349 is a deficient number, since it is larger than the sum of its proper divisors (1).

225526349 is an equidigital number, since it uses as much as digits as its factorization.

225526349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

The square root of 225526349 is about 15017.5347177891. The cubic root of 225526349 is about 608.6941059028.

The spelling of 225526349 in words is "two hundred twenty-five million, five hundred twenty-six thousand, three hundred forty-nine".