225243763 has 4 divisors (see below), whose sum is σ = 228329368. Its totient is φ = 222158160.

The previous prime is 225243757. The next prime is 225243779. The reversal of 225243763 is 367342522.

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

It is a cyclic number.

It is not a de Polignac number, because 225243763 - 2⁵ = 225243731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225243703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1542693 + ... + 1542838.

It is an arithmetic number, because the mean of its divisors is an integer number (57082342).

Almost surely, 2^225243763 is an apocalyptic number.

225243763 is a deficient number, since it is larger than the sum of its proper divisors (3085605).

225243763 is an equidigital number, since it uses as much as digits as its factorization.

225243763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085604.

The product of its digits is 60480, while the sum is 34.

The square root of 225243763 is about 15008.1232337691. The cubic root of 225243763 is about 608.4397670699.

The spelling of 225243763 in words is "two hundred twenty-five million, two hundred forty-three thousand, seven hundred sixty-three".