454221225 has 18 divisors (see below), whose sum is σ = 813561086. Its totient is φ = 242251200.

The previous prime is 454221223. The next prime is 454221233. The reversal of 454221225 is 522122454.

It can be written as a sum of positive squares in 3 ways, for example, as 19881 + 454201344 = 141^2 + 21312^2 .

It is not a de Polignac number, because 454221225 - 2¹ = 454221223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454221223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1009156 + ... + 1009605.

Almost surely, 2^454221225 is an apocalyptic number.

454221225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

454221225 is a deficient number, since it is larger than the sum of its proper divisors (359339861).

454221225 is a wasteful number, since it uses less digits than its factorization.

454221225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018777 (or 2018769 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 454221225 is about 21312.4664222609. The cubic root of 454221225 is about 768.6981007993.

Adding to 454221225 its reverse (522122454), we get a palindrome (976343679).

The spelling of 454221225 in words is "four hundred fifty-four million, two hundred twenty-one thousand, two hundred twenty-five".