225241897 has 2 divisors, whose sum is σ = 225241898. Its totient is φ = 225241896.

The previous prime is 225241871. The next prime is 225241901. The reversal of 225241897 is 798142522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220700736 + 4541161 = 14856^2 + 2131^2 .

It is a cyclic number.

It is not a de Polignac number, because 225241897 - 2⁷ = 225241769 is a prime.

It is equal to p_12395389 and since 225241897 and 12395389 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (225241297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112620948 + 112620949.

It is an arithmetic number, because the mean of its divisors is an integer number (112620949).

Almost surely, 2^225241897 is an apocalyptic number.

It is an amenable number.

225241897 is a deficient number, since it is larger than the sum of its proper divisors (1).

225241897 is an equidigital number, since it uses as much as digits as its factorization.

225241897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 225241897 is about 15008.0610673065. The cubic root of 225241897 is about 608.4380868876.

The spelling of 225241897 in words is "two hundred twenty-five million, two hundred forty-one thousand, eight hundred ninety-seven".