223456564 has 12 divisors (see below), whose sum is σ = 391303584. Its totient is φ = 111655544.

The previous prime is 223456561. The next prime is 223456589. The reversal of 223456564 is 465654322.

223456564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223456561) 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, 10954 + ... + 23809.

It is an arithmetic number, because the mean of its divisors is an integer number (32608632).

Almost surely, 2^223456564 is an apocalyptic number.

It is an amenable number.

223456564 is a deficient number, since it is larger than the sum of its proper divisors (167847020).

223456564 is a wasteful number, since it uses less digits than its factorization.

223456564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36374 (or 36372 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

The square root of 223456564 is about 14948.4635999824. The cubic root of 223456564 is about 606.8262681696.

The spelling of 223456564 in words is "two hundred twenty-three million, four hundred fifty-six thousand, five hundred sixty-four".