605055500617 has 4 divisors (see below), whose sum is σ = 607566104596. Its totient is φ = 602544896640.

The previous prime is 605055500603. The next prime is 605055500639. The reversal of 605055500617 is 716005550506.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 334852024896 + 270203475721 = 578664^2 + 519811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605055500617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 605055500617.

It is not an unprimeable number, because it can be changed into a prime (605055500657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255301628 + ... + 1255302109.

It is an arithmetic number, because the mean of its divisors is an integer number (151891526149).

Almost surely, 2^605055500617 is an apocalyptic number.

It is an amenable number.

605055500617 is a deficient number, since it is larger than the sum of its proper divisors (2510603979).

605055500617 is a wasteful number, since it uses less digits than its factorization.

605055500617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510603978.

The product of its (nonzero) digits is 157500, while the sum is 40.

The spelling of 605055500617 in words is "six hundred five billion, fifty-five million, five hundred thousand, six hundred seventeen".