255528203393 has 2 divisors, whose sum is σ = 255528203394. Its totient is φ = 255528203392.

The previous prime is 255528203387. The next prime is 255528203417. The reversal of 255528203393 is 393302825552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192362942464 + 63165260929 = 438592^2 + 251327^2 .

It is a cyclic number.

It is not a de Polignac number, because 255528203393 - 2⁸ = 255528203137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (255528203303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127764101696 + 127764101697.

It is an arithmetic number, because the mean of its divisors is an integer number (127764101697).

Almost surely, 2^255528203393 is an apocalyptic number.

It is an amenable number.

255528203393 is a deficient number, since it is larger than the sum of its proper divisors (1).

255528203393 is an equidigital number, since it uses as much as digits as its factorization.

255528203393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 255528203393 in words is "two hundred fifty-five billion, five hundred twenty-eight million, two hundred three thousand, three hundred ninety-three".