225524450 has 12 divisors (see below), whose sum is σ = 419475570. Its totient is φ = 90209760.

The previous prime is 225524443. The next prime is 225524459. The reversal of 225524450 is 54425522.

It can be written as a sum of positive squares in 3 ways, for example, as 206870689 + 18653761 = 14383^2 + 4319^2 .

It is a super-2 number, since 2×225524450² = 101722555095605000, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225524459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2255195 + ... + 2255294.

Almost surely, 2^225524450 is an apocalyptic number.

225524450 is a deficient number, since it is larger than the sum of its proper divisors (193951120).

225524450 is a wasteful number, since it uses less digits than its factorization.

225524450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510501 (or 4510496 counting only the distinct ones).

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

The square root of 225524450 is about 15017.4714915661. The cubic root of 225524450 is about 608.6923974353.

Adding to 225524450 its reverse (54425522), we get a palindrome (279949972).

The spelling of 225524450 in words is "two hundred twenty-five million, five hundred twenty-four thousand, four hundred fifty".