225104261 has 2 divisors, whose sum is σ = 225104262. Its totient is φ = 225104260.

The previous prime is 225104239. The next prime is 225104281. The reversal of 225104261 is 162401522.

It is a happy number.

225104261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170433025 + 54671236 = 13055^2 + 7394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225104261 is a prime.

It is a super-2 number, since 2×225104261² = 101343856640712242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225104281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112552130 + 112552131.

It is an arithmetic number, because the mean of its divisors is an integer number (112552131).

Almost surely, 2^225104261 is an apocalyptic number.

It is an amenable number.

225104261 is a deficient number, since it is larger than the sum of its proper divisors (1).

225104261 is an equidigital number, since it uses as much as digits as its factorization.

225104261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 225104261 is about 15003.4749641541. The cubic root of 225104261 is about 608.3141311926.

Adding to 225104261 its reverse (162401522), we get a palindrome (387505783).

The spelling of 225104261 in words is "two hundred twenty-five million, one hundred four thousand, two hundred sixty-one".