557616857 has 8 divisors (see below), whose sum is σ = 637502976. Its totient is φ = 477787392.

The previous prime is 557616823. The next prime is 557616863. The reversal of 557616857 is 758616755.

It is a happy number.

557616857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 557616857 - 2¹² = 557612761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557606857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9593 + ... + 34745.

It is an arithmetic number, because the mean of its divisors is an integer number (79687872).

Almost surely, 2^557616857 is an apocalyptic number.

It is an amenable number.

557616857 is a deficient number, since it is larger than the sum of its proper divisors (79886119).

557616857 is a wasteful number, since it uses less digits than its factorization.

557616857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28327.

The product of its digits is 1764000, while the sum is 50.

The square root of 557616857 is about 23613.9123611485. The cubic root of 557616857 is about 823.0861578699.

The spelling of 557616857 in words is "five hundred fifty-seven million, six hundred sixteen thousand, eight hundred fifty-seven".