225244249 has 4 divisors (see below), whose sum is σ = 227310820. Its totient is φ = 223177680.

The previous prime is 225244231. The next prime is 225244273. The reversal of 225244249 is 942442522.

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

It can be written as a sum of positive squares in 2 ways, for example, as 182250000 + 42994249 = 13500^2 + 6557^2 .

It is a cyclic number.

It is not a de Polignac number, because 225244249 - 2⁷ = 225244121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225244219) 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, 1033122 + ... + 1033339.

It is an arithmetic number, because the mean of its divisors is an integer number (56827705).

Almost surely, 2^225244249 is an apocalyptic number.

It is an amenable number.

225244249 is a deficient number, since it is larger than the sum of its proper divisors (2066571).

225244249 is a wasteful number, since it uses less digits than its factorization.

225244249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066570.

The product of its digits is 46080, while the sum is 34.

The square root of 225244249 is about 15008.1394249920. The cubic root of 225244249 is about 608.4402046721.

The spelling of 225244249 in words is "two hundred twenty-five million, two hundred forty-four thousand, two hundred forty-nine".