17103255553 has 2 divisors, whose sum is σ = 17103255554. Its totient is φ = 17103255552.

The previous prime is 17103255539. The next prime is 17103255581. The reversal of 17103255553 is 35555230171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14827202289 + 2276053264 = 121767^2 + 47708^2 .

It is an emirp because it is prime and its reverse (35555230171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17103255553 - 2⁹ = 17103255041 is a prime.

It is a super-2 number, since 2×17103255553² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (17103255503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8551627776 + 8551627777.

It is an arithmetic number, because the mean of its divisors is an integer number (8551627777).

Almost surely, 2^17103255553 is an apocalyptic number.

It is an amenable number.

17103255553 is a deficient number, since it is larger than the sum of its proper divisors (1).

17103255553 is an equidigital number, since it uses as much as digits as its factorization.

17103255553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78750, while the sum is 37.

It can be divided in two parts, 1710325 and 5553, that added together give a triangular number (1715878 = T₁₈₅₂).

The spelling of 17103255553 in words is "seventeen billion, one hundred three million, two hundred fifty-five thousand, five hundred fifty-three".