223232564 has 6 divisors (see below), whose sum is σ = 390656994. Its totient is φ = 111616280.

The previous prime is 223232561. The next prime is 223232617. The reversal of 223232564 is 465232322.

It can be written as a sum of positive squares in only one way, i.e., 123032464 + 100200100 = 11092^2 + 10010^2 .

It is a super-3 number, since 3×223232564³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223232561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27904067 + ... + 27904074.

It is an arithmetic number, because the mean of its divisors is an integer number (65109499).

Almost surely, 2^223232564 is an apocalyptic number.

It is an amenable number.

223232564 is a deficient number, since it is larger than the sum of its proper divisors (167424430).

223232564 is a wasteful number, since it uses less digits than its factorization.

223232564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55808145 (or 55808143 counting only the distinct ones).

The product of its digits is 17280, while the sum is 29.

The square root of 223232564 is about 14940.9693125982. The cubic root of 223232564 is about 606.6234330312.

Adding to 223232564 its reverse (465232322), we get a palindrome (688464886).

The spelling of 223232564 in words is "two hundred twenty-three million, two hundred thirty-two thousand, five hundred sixty-four".