225996461 has 2 divisors, whose sum is σ = 225996462. Its totient is φ = 225996460.

The previous prime is 225996443. The next prime is 225996473. The reversal of 225996461 is 164699522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130074025 + 95922436 = 11405^2 + 9794^2 .

It is a cyclic number.

It is not a de Polignac number, because 225996461 - 2¹⁰ = 225995437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225996401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112998230 + 112998231.

It is an arithmetic number, because the mean of its divisors is an integer number (112998231).

Almost surely, 2^225996461 is an apocalyptic number.

It is an amenable number.

225996461 is a deficient number, since it is larger than the sum of its proper divisors (1).

225996461 is an equidigital number, since it uses as much as digits as its factorization.

225996461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 44.

The square root of 225996461 is about 15033.1786725230. The cubic root of 225996461 is about 609.1167554131.

The spelling of 225996461 in words is "two hundred twenty-five million, nine hundred ninety-six thousand, four hundred sixty-one".