225245450 has 24 divisors (see below), whose sum is σ = 421288140. Its totient is φ = 89596800.

The previous prime is 225245443. The next prime is 225245459. The reversal of 225245450 is 54542522.

It can be written as a sum of positive squares in 6 ways, for example, as 755161 + 224490289 = 869^2 + 14983^2 .

It is not an unprimeable number, because it can be changed into a prime (225245459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3395 + ... + 21494.

Almost surely, 2^225245450 is an apocalyptic number.

225245450 is a deficient number, since it is larger than the sum of its proper divisors (196042690).

225245450 is a wasteful number, since it uses less digits than its factorization.

225245450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25082 (or 25077 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 225245450 is about 15008.1794365606. The cubic root of 225245450 is about 608.4412860691.

Adding to 225245450 its reverse (54542522), we get a palindrome (279787972).

The spelling of 225245450 in words is "two hundred twenty-five million, two hundred forty-five thousand, four hundred fifty".