223215225 has 12 divisors (see below), whose sum is σ = 369049296. Its totient is φ = 119048080.

The previous prime is 223215217. The next prime is 223215227. The reversal of 223215225 is 522512322.

It is not a de Polignac number, because 223215225 - 2³ = 223215217 is a prime.

It is a super-3 number, since 3×223215225³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 223215195 and 223215204.

It is not an unprimeable number, because it can be changed into a prime (223215227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1488027 + ... + 1488176.

It is an arithmetic number, because the mean of its divisors is an integer number (30754108).

Almost surely, 2^223215225 is an apocalyptic number.

223215225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223215225 is a deficient number, since it is larger than the sum of its proper divisors (145834071).

223215225 is a wasteful number, since it uses less digits than its factorization.

223215225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976216 (or 2976211 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 223215225 is about 14940.3890511593. The cubic root of 223215225 is about 606.6077266667.

Adding to 223215225 its reverse (522512322), we get a palindrome (745727547).

The spelling of 223215225 in words is "two hundred twenty-three million, two hundred fifteen thousand, two hundred twenty-five".