223456555 has 16 divisors (see below), whose sum is σ = 307102464. Its totient is φ = 152903520.

The previous prime is 223456547. The next prime is 223456561. The reversal of 223456555 is 555654322.

It is not a de Polignac number, because 223456555 - 2³ = 223456547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10684 + ... + 23686.

It is an arithmetic number, because the mean of its divisors is an integer number (19193904).

Almost surely, 2^223456555 is an apocalyptic number.

223456555 is a deficient number, since it is larger than the sum of its proper divisors (83645909).

223456555 is a wasteful number, since it uses less digits than its factorization.

223456555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13506.

The product of its digits is 180000, while the sum is 37.

The square root of 223456555 is about 14948.4632989482. The cubic root of 223456555 is about 606.8262600227.

It can be divided in two parts, 22345 and 6555, that added together give a square (28900 = 170²).

The spelling of 223456555 in words is "two hundred twenty-three million, four hundred fifty-six thousand, five hundred fifty-five".