228000503 has 4 divisors (see below), whose sum is σ = 228954720. Its totient is φ = 227046288.

The previous prime is 228000473. The next prime is 228000517. The reversal of 228000503 is 305000822.

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 228000503 - 2²² = 223806199 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 (228000533) 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, 476750 + ... + 477227.

It is an arithmetic number, because the mean of its divisors is an integer number (57238680).

Almost surely, 2^228000503 is an apocalyptic number.

228000503 is a deficient number, since it is larger than the sum of its proper divisors (954217).

228000503 is an equidigital number, since it uses as much as digits as its factorization.

228000503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954216.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 228000503 is about 15099.6855265267. The cubic root of 228000503 is about 610.9119236808.

The spelling of 228000503 in words is "two hundred twenty-eight million, five hundred three", and thus it is an aban number.