223502500 has 135 divisors (see below), whose sum is σ = 553254933. Its totient is φ = 78936000.

The previous prime is 223502479. The next prime is 223502501. The reversal of 223502500 is 5205322.

The square root of 223502500 is 14950.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 220760164 + 2742336 = 14858^2 + 1656^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223502501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 9717489 + ... + 9717511.

Almost surely, 2^223502500 is an apocalyptic number.

223502500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

223502500 is the 14950-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223502500

223502500 is an abundant number, since it is smaller than the sum of its proper divisors (329752433).

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

223502500 is a wasteful number, since it uses less digits than its factorization.

223502500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The cubic root of 223502500 is about 606.8678471101.

Adding to 223502500 its reverse (5205322), we get a palindrome (228707822).

The spelling of 223502500 in words is "two hundred twenty-three million, five hundred two thousand, five hundred".