263881325503 has 2 divisors, whose sum is σ = 263881325504. Its totient is φ = 263881325502.

The previous prime is 263881325423. The next prime is 263881325527. The reversal of 263881325503 is 305523188362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263881325503 - 2²⁹ = 263344454591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263881325563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131940662751 + 131940662752.

It is an arithmetic number, because the mean of its divisors is an integer number (131940662752).

Almost surely, 2^263881325503 is an apocalyptic number.

263881325503 is a deficient number, since it is larger than the sum of its proper divisors (1).

263881325503 is an equidigital number, since it uses as much as digits as its factorization.

263881325503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 263881325503 in words is "two hundred sixty-three billion, eight hundred eighty-one million, three hundred twenty-five thousand, five hundred three".