557099389 has 16 divisors (see below), whose sum is σ = 703365120. Its totient is φ = 428603760.

The previous prime is 557099371. The next prime is 557099407. The reversal of 557099389 is 983990755.

557099389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (557099371) and next prime (557099407).

It is a cyclic number.

It is not a de Polignac number, because 557099389 - 2²⁷ = 422881661 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 (557099329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39709 + ... + 51874.

It is an arithmetic number, because the mean of its divisors is an integer number (43960320).

Almost surely, 2^557099389 is an apocalyptic number.

It is an amenable number.

557099389 is a deficient number, since it is larger than the sum of its proper divisors (146265731).

557099389 is a wasteful number, since it uses less digits than its factorization.

557099389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91680.

The product of its (nonzero) digits is 3061800, while the sum is 55.

The square root of 557099389 is about 23602.9529720330. The cubic root of 557099389 is about 822.8314713039.

The spelling of 557099389 in words is "five hundred fifty-seven million, ninety-nine thousand, three hundred eighty-nine".