223542225 has 36 divisors (see below), whose sum is σ = 403593216. Its totient is φ = 118268640.

The previous prime is 223542203. The next prime is 223542259. The reversal of 223542225 is 522245322.

223542225 is a `hidden beast` number, since 2 + 235 + 422 + 2 + 5 = 666.

It is not a de Polignac number, because 223542225 - 2⁶ = 223542161 is a prime.

It is a super-2 number, since 2×223542225² = 99942252715901250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24664 + ... + 32486.

Almost surely, 2^223542225 is an apocalyptic number.

223542225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223542225 is a deficient number, since it is larger than the sum of its proper divisors (180050991).

223542225 is a wasteful number, since it uses less digits than its factorization.

223542225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7966 (or 7958 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 223542225 is about 14951.3285362873. The cubic root of 223542225 is about 606.9037995746.

Adding to 223542225 its reverse (522245322), we get a palindrome (745787547).

The spelling of 223542225 in words is "two hundred twenty-three million, five hundred forty-two thousand, two hundred twenty-five".