17255340243 has 6 divisors (see below), whose sum is σ = 24924380364. Its totient is φ = 11503560156.

The previous prime is 17255340241. The next prime is 17255340247. The reversal of 17255340243 is 34204355271.

17255340243 is a `hidden beast` number, since 1 + 72 + 5 + 5 + 340 + 243 = 666.

It is not a de Polignac number, because 17255340243 - 2¹ = 17255340241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17255340198 and 17255340207.

It is not an unprimeable number, because it can be changed into a prime (17255340241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 958630005 + ... + 958630022.

It is an arithmetic number, because the mean of its divisors is an integer number (4154063394).

Almost surely, 2^17255340243 is an apocalyptic number.

17255340243 is a deficient number, since it is larger than the sum of its proper divisors (7669040121).

17255340243 is a wasteful number, since it uses less digits than its factorization.

17255340243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917260033 (or 1917260030 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The spelling of 17255340243 in words is "seventeen billion, two hundred fifty-five million, three hundred forty thousand, two hundred forty-three".