223655435503 has 2 divisors, whose sum is σ = 223655435504. Its totient is φ = 223655435502.

The previous prime is 223655435453. The next prime is 223655435551. The reversal of 223655435503 is 305534556322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223655435503 - 2²⁵ = 223621881071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223655435503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223655435903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111827717751 + 111827717752.

It is an arithmetic number, because the mean of its divisors is an integer number (111827717752).

Almost surely, 2^223655435503 is an apocalyptic number.

223655435503 is a deficient number, since it is larger than the sum of its proper divisors (1).

223655435503 is an equidigital number, since it uses as much as digits as its factorization.

223655435503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620000, while the sum is 43.

The spelling of 223655435503 in words is "two hundred twenty-three billion, six hundred fifty-five million, four hundred thirty-five thousand, five hundred three".