225205349 has 2 divisors, whose sum is σ = 225205350. Its totient is φ = 225205348.

The previous prime is 225205327. The next prime is 225205391. The reversal of 225205349 is 943502522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179372449 + 45832900 = 13393^2 + 6770^2 .

It is a cyclic number.

It is not a de Polignac number, because 225205349 - 2⁸ = 225205093 is a prime.

It is equal to p_12393527 and since 225205349 and 12393527 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225205399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112602674 + 112602675.

It is an arithmetic number, because the mean of its divisors is an integer number (112602675).

Almost surely, 2^225205349 is an apocalyptic number.

It is an amenable number.

225205349 is a deficient number, since it is larger than the sum of its proper divisors (1).

225205349 is an equidigital number, since it uses as much as digits as its factorization.

225205349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 225205349 is about 15006.8434055933. The cubic root of 225205349 is about 608.4051764946.

The spelling of 225205349 in words is "two hundred twenty-five million, two hundred five thousand, three hundred forty-nine".