263855063 has 2 divisors, whose sum is σ = 263855064. Its totient is φ = 263855062.

The previous prime is 263854999. The next prime is 263855087. The reversal of 263855063 is 360558362.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263855063 - 2⁶ = 263854999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263855093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131927531 + 131927532.

It is an arithmetic number, because the mean of its divisors is an integer number (131927532).

Almost surely, 2^263855063 is an apocalyptic number.

263855063 is a deficient number, since it is larger than the sum of its proper divisors (1).

263855063 is an equidigital number, since it uses as much as digits as its factorization.

263855063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 263855063 is about 16243.6160690900. The cubic root of 263855063 is about 641.3894479424.

The spelling of 263855063 in words is "two hundred sixty-three million, eight hundred fifty-five thousand, sixty-three".