557081389 has 2 divisors, whose sum is σ = 557081390. Its totient is φ = 557081388.

The previous prime is 557081359. The next prime is 557081419. The reversal of 557081389 is 983180755.

It is a balanced prime because it is at equal distance from previous prime (557081359) and next prime (557081419).

It can be written as a sum of positive squares in only one way, i.e., 302934025 + 254147364 = 17405^2 + 15942^2 .

It is a cyclic number.

It is not a de Polignac number, because 557081389 - 2⁹ = 557080877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557081359) 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 as a sum of consecutive naturals, namely, 278540694 + 278540695.

It is an arithmetic number, because the mean of its divisors is an integer number (278540695).

Almost surely, 2^557081389 is an apocalyptic number.

It is an amenable number.

557081389 is a deficient number, since it is larger than the sum of its proper divisors (1).

557081389 is an equidigital number, since it uses as much as digits as its factorization.

557081389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 557081389 is about 23602.5716607322. The cubic root of 557081389 is about 822.8226092551.

The spelling of 557081389 in words is "five hundred fifty-seven million, eighty-one thousand, three hundred eighty-nine".