557800609 has 4 divisors (see below), whose sum is σ = 557897860. Its totient is φ = 557703360.

The previous prime is 557800597. The next prime is 557800619. The reversal of 557800609 is 906008755.

It is a happy number.

557800609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 151979584 + 405821025 = 12328^2 + 20145^2 .

It is a cyclic number.

It is not a de Polignac number, because 557800609 - 2⁹ = 557800097 is a prime.

It is a super-2 number, since 2×557800609² = 622283038801541762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557800619) 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, 39444 + ... + 51685.

It is an arithmetic number, because the mean of its divisors is an integer number (139474465).

Almost surely, 2^557800609 is an apocalyptic number.

It is an amenable number.

557800609 is a deficient number, since it is larger than the sum of its proper divisors (97251).

557800609 is an equidigital number, since it uses as much as digits as its factorization.

557800609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97250.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 557800609 is about 23617.8027978896. The cubic root of 557800609 is about 823.1765587223.

The spelling of 557800609 in words is "five hundred fifty-seven million, eight hundred thousand, six hundred nine".