538305223 has 2 divisors, whose sum is σ = 538305224. Its totient is φ = 538305222.

The previous prime is 538305217. The next prime is 538305239. The reversal of 538305223 is 322503835.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538305223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538305023) 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 as a sum of consecutive naturals, namely, 269152611 + 269152612.

It is an arithmetic number, because the mean of its divisors is an integer number (269152612).

Almost surely, 2^538305223 is an apocalyptic number.

538305223 is a deficient number, since it is larger than the sum of its proper divisors (1).

538305223 is an equidigital number, since it uses as much as digits as its factorization.

538305223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 538305223 is about 23201.4056255219. The cubic root of 538305223 is about 813.4724787504.

The spelling of 538305223 in words is "five hundred thirty-eight million, three hundred five thousand, two hundred twenty-three".