223012500 has 144 divisors (see below), whose sum is σ = 686831040. Its totient is φ = 56160000.

The previous prime is 223012459. The next prime is 223012501. The reversal of 223012500 is 5210322.

223012500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 223012500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223012501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 712344 + ... + 712656.

It is an arithmetic number, because the mean of its divisors is an integer number (4769660).

Almost surely, 2^223012500 is an apocalyptic number.

223012500 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 223012500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343415520).

223012500 is an abundant number, since it is smaller than the sum of its proper divisors (463818540).

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

223012500 is a wasteful number, since it uses less digits than its factorization.

223012500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 223012500 is about 14933.6030481595. The cubic root of 223012500 is about 606.4240298201.

Adding to 223012500 its reverse (5210322), we get a palindrome (228222822).

The spelling of 223012500 in words is "two hundred twenty-three million, twelve thousand, five hundred".