255547325393 has 2 divisors, whose sum is σ = 255547325394. Its totient is φ = 255547325392.

The previous prime is 255547325357. The next prime is 255547325419. The reversal of 255547325393 is 393523745552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252514290064 + 3033035329 = 502508^2 + 55073^2 .

It is a cyclic number.

It is not a de Polignac number, because 255547325393 - 2¹⁸ = 255547063249 is a prime.

It is not a weakly prime, because it can be changed into another prime (255547325323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127773662696 + 127773662697.

It is an arithmetic number, because the mean of its divisors is an integer number (127773662697).

Almost surely, 2^255547325393 is an apocalyptic number.

It is an amenable number.

255547325393 is a deficient number, since it is larger than the sum of its proper divisors (1).

255547325393 is an equidigital number, since it uses as much as digits as its factorization.

255547325393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010000, while the sum is 53.

The spelling of 255547325393 in words is "two hundred fifty-five billion, five hundred forty-seven million, three hundred twenty-five thousand, three hundred ninety-three".