606606557 has 4 divisors (see below), whose sum is σ = 606660636. Its totient is φ = 606552480.

The previous prime is 606606551. The next prime is 606606569. The reversal of 606606557 is 755606606.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 413146276 + 193460281 = 20326^2 + 13909^2 .

It is a cyclic number.

It is not a de Polignac number, because 606606557 - 2⁴ = 606606541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606606551) 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, 3218 + ... + 34979.

It is an arithmetic number, because the mean of its divisors is an integer number (151665159).

Almost surely, 2^606606557 is an apocalyptic number.

It is an amenable number.

606606557 is a deficient number, since it is larger than the sum of its proper divisors (54079).

606606557 is a wasteful number, since it uses less digits than its factorization.

606606557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54078.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 606606557 is about 24629.3840158458. The cubic root of 606606557 is about 846.5170311504.

The spelling of 606606557 in words is "six hundred six million, six hundred six thousand, five hundred fifty-seven".