223525212 has 12 divisors (see below), whose sum is σ = 521558856. Its totient is φ = 74508400.

The previous prime is 223525147. The next prime is 223525213. The reversal of 223525212 is 212525322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223525213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9313539 + ... + 9313562.

It is an arithmetic number, because the mean of its divisors is an integer number (43463238).

Almost surely, 2^223525212 is an apocalyptic number.

It is an amenable number.

223525212 is an abundant number, since it is smaller than the sum of its proper divisors (298033644).

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

223525212 is a wasteful number, since it uses less digits than its factorization.

223525212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18627108 (or 18627106 counting only the distinct ones).

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

The square root of 223525212 is about 14950.7595793659. The cubic root of 223525212 is about 606.8884027575. Note that the first 3 decimals are identical.

The spelling of 223525212 in words is "two hundred twenty-three million, five hundred twenty-five thousand, two hundred twelve".