255358635503 has 2 divisors, whose sum is σ = 255358635504. Its totient is φ = 255358635502.

The previous prime is 255358635473. The next prime is 255358635557. The reversal of 255358635503 is 305536853552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255358635503 - 2¹⁴ = 255358619119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255358625503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127679317751 + 127679317752.

It is an arithmetic number, because the mean of its divisors is an integer number (127679317752).

Almost surely, 2^255358635503 is an apocalyptic number.

255358635503 is a deficient number, since it is larger than the sum of its proper divisors (1).

255358635503 is an equidigital number, since it uses as much as digits as its factorization.

255358635503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100000, while the sum is 50.

The spelling of 255358635503 in words is "two hundred fifty-five billion, three hundred fifty-eight million, six hundred thirty-five thousand, five hundred three".