223530500 has 48 divisors (see below), whose sum is σ = 494457600. Its totient is φ = 88264800.

The previous prime is 223530499. The next prime is 223530529. The reversal of 223530500 is 5035322.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36671 + ... + 42329.

It is an arithmetic number, because the mean of its divisors is an integer number (10301200).

Almost surely, 2^223530500 is an apocalyptic number.

223530500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223530500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247228800).

223530500 is an abundant number, since it is smaller than the sum of its proper divisors (270927100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223530500 is a wasteful number, since it uses less digits than its factorization.

223530500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5757 (or 5745 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 223530500 is about 14950.9364255220. The cubic root of 223530500 is about 606.8931884974.

Adding to 223530500 its reverse (5035322), we get a palindrome (228565822).

The spelling of 223530500 in words is "two hundred twenty-three million, five hundred thirty thousand, five hundred".