222555563 has 4 divisors (see below), whose sum is σ = 222735000. Its totient is φ = 222376128.

The previous prime is 222555559. The next prime is 222555581. The reversal of 222555563 is 365555222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365555222 = 2 ⋅182777611.

It is a cyclic number.

It is not a de Polignac number, because 222555563 - 2² = 222555559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222555523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87845 + ... + 90342.

It is an arithmetic number, because the mean of its divisors is an integer number (55683750).

Almost surely, 2^222555563 is an apocalyptic number.

222555563 is a deficient number, since it is larger than the sum of its proper divisors (179437).

222555563 is a wasteful number, since it uses less digits than its factorization.

222555563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179436.

The product of its digits is 90000, while the sum is 35.

The square root of 222555563 is about 14918.2962499074. The cubic root of 222555563 is about 606.0095731658.

The spelling of 222555563 in words is "two hundred twenty-two million, five hundred fifty-five thousand, five hundred sixty-three".