223552665 has 24 divisors (see below), whose sum is σ = 442847808. Its totient is φ = 102195360.

The previous prime is 223552661. The next prime is 223552697. The reversal of 223552665 is 566255322.

It is not a de Polignac number, because 223552665 - 2² = 223552661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223552661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354531 + ... + 355160.

It is an arithmetic number, because the mean of its divisors is an integer number (18451992).

Almost surely, 2^223552665 is an apocalyptic number.

It is an amenable number.

223552665 is a deficient number, since it is larger than the sum of its proper divisors (219295143).

223552665 is a wasteful number, since it uses less digits than its factorization.

223552665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709709 (or 709706 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 223552665 is about 14951.6776650649. The cubic root of 223552665 is about 606.9132474198.

The spelling of 223552665 in words is "two hundred twenty-three million, five hundred fifty-two thousand, six hundred sixty-five".