225454447 has 4 divisors (see below), whose sum is σ = 225805720. Its totient is φ = 225103176.

The previous prime is 225454429. The next prime is 225454451. The reversal of 225454447 is 744454522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225454447 - 2⁷ = 225454319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225458447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174672 + ... + 175957.

It is an arithmetic number, because the mean of its divisors is an integer number (56451430).

Almost surely, 2^225454447 is an apocalyptic number.

225454447 is a deficient number, since it is larger than the sum of its proper divisors (351273).

225454447 is an equidigital number, since it uses as much as digits as its factorization.

225454447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351272.

The product of its digits is 179200, while the sum is 37.

The square root of 225454447 is about 15015.1405920824. The cubic root of 225454447 is about 608.6294113549.

The spelling of 225454447 in words is "two hundred twenty-five million, four hundred fifty-four thousand, four hundred forty-seven".