225013163 has 4 divisors (see below), whose sum is σ = 234796368. Its totient is φ = 215229960.

The previous prime is 225013147. The next prime is 225013193. The reversal of 225013163 is 361310522.

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 225013163 - 2⁴ = 225013147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 9783181 = 225013163 / (2 + 2 + 5 + 0 + 1 + 3 + 1 + 6 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225013123) 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, 4891568 + ... + 4891613.

It is an arithmetic number, because the mean of its divisors is an integer number (58699092).

Almost surely, 2^225013163 is an apocalyptic number.

225013163 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

225013163 is a deficient number, since it is larger than the sum of its proper divisors (9783205).

225013163 is an equidigital number, since it uses as much as digits as its factorization.

225013163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9783204.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 225013163 is about 15000.4387602496. The cubic root of 225013163 is about 608.2320600705.

Adding to 225013163 its reverse (361310522), we get a palindrome (586323685).

The spelling of 225013163 in words is "two hundred twenty-five million, thirteen thousand, one hundred sixty-three".