225432249 has 32 divisors (see below), whose sum is σ = 350085120. Its totient is φ = 126375552.

The previous prime is 225432241. The next prime is 225432281. The reversal of 225432249 is 942234522.

It is not a de Polignac number, because 225432249 - 2³ = 225432241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225432241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470392 + ... + 470870.

It is an arithmetic number, because the mean of its divisors is an integer number (10940160).

Almost surely, 2^225432249 is an apocalyptic number.

It is an amenable number.

225432249 is a deficient number, since it is larger than the sum of its proper divisors (124652871).

225432249 is a wasteful number, since it uses less digits than its factorization.

225432249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its digits is 34560, while the sum is 33.

The square root of 225432249 is about 15014.4013866687. The cubic root of 225432249 is about 608.6094357023.

The spelling of 225432249 in words is "two hundred twenty-five million, four hundred thirty-two thousand, two hundred forty-nine".