225500503 has 4 divisors (see below), whose sum is σ = 225544608. Its totient is φ = 225456400.

The previous prime is 225500497. The next prime is 225500519. The reversal of 225500503 is 305005522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305005522 = 2 ⋅152502761.

It is a cyclic number.

It is not a de Polignac number, because 225500503 - 2⁹ = 225499991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225500593) 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, 13198 + ... + 25003.

It is an arithmetic number, because the mean of its divisors is an integer number (56386152).

Almost surely, 2^225500503 is an apocalyptic number.

225500503 is a deficient number, since it is larger than the sum of its proper divisors (44105).

225500503 is an equidigital number, since it uses as much as digits as its factorization.

225500503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44104.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 225500503 is about 15016.6741657399. The cubic root of 225500503 is about 608.6708522875.

The spelling of 225500503 in words is "two hundred twenty-five million, five hundred thousand, five hundred three".