605599561 has 8 divisors (see below), whose sum is σ = 708994944. Its totient is φ = 506424480.

The previous prime is 605599549. The next prime is 605599567. The reversal of 605599561 is 165995506.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 605599561 - 2⁷ = 605599433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (605599567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054765 + ... + 1055338.

It is an arithmetic number, because the mean of its divisors is an integer number (88624368).

Almost surely, 2^605599561 is an apocalyptic number.

It is an amenable number.

605599561 is a deficient number, since it is larger than the sum of its proper divisors (103395383).

605599561 is a wasteful number, since it uses less digits than its factorization.

605599561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110151.

The product of its (nonzero) digits is 364500, while the sum is 46.

The square root of 605599561 is about 24608.9325449114. The cubic root of 605599561 is about 846.0483520774.

The spelling of 605599561 in words is "six hundred five million, five hundred ninety-nine thousand, five hundred sixty-one".