225474917 has 2 divisors, whose sum is σ = 225474918. Its totient is φ = 225474916.

The previous prime is 225474877. The next prime is 225474923. The reversal of 225474917 is 719474522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163993636 + 61481281 = 12806^2 + 7841^2 .

It is a cyclic number.

It is not a de Polignac number, because 225474917 - 2⁶ = 225474853 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225474937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112737458 + 112737459.

It is an arithmetic number, because the mean of its divisors is an integer number (112737459).

Almost surely, 2^225474917 is an apocalyptic number.

It is an amenable number.

225474917 is a deficient number, since it is larger than the sum of its proper divisors (1).

225474917 is an equidigital number, since it uses as much as digits as its factorization.

225474917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 41.

The square root of 225474917 is about 15015.8222219098. The cubic root of 225474917 is about 608.6478308437.

The spelling of 225474917 in words is "two hundred twenty-five million, four hundred seventy-four thousand, nine hundred seventeen".