223525213 has 2 divisors, whose sum is σ = 223525214. Its totient is φ = 223525212.

The previous prime is 223525147. The next prime is 223525219. The reversal of 223525213 is 312525322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217946169 + 5579044 = 14763^2 + 2362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223525213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223525219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111762606 + 111762607.

It is an arithmetic number, because the mean of its divisors is an integer number (111762607).

Almost surely, 2^223525213 is an apocalyptic number.

It is an amenable number.

223525213 is a deficient number, since it is larger than the sum of its proper divisors (1).

223525213 is an equidigital number, since it uses as much as digits as its factorization.

223525213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 223525213 is about 14950.7596128090. The cubic root of 223525213 is about 606.8884036625. Note that the first 3 decimals are identical.

The spelling of 223525213 in words is "two hundred twenty-three million, five hundred twenty-five thousand, two hundred thirteen".