557069449 has 2 divisors, whose sum is σ = 557069450. Its totient is φ = 557069448.

The previous prime is 557069431. The next prime is 557069459. The reversal of 557069449 is 944960755.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324720400 + 232349049 = 18020^2 + 15243^2 .

It is a cyclic number.

It is not a de Polignac number, because 557069449 - 2¹⁵ = 557036681 is a prime.

It is not a weakly prime, because it can be changed into another prime (557069459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278534724 + 278534725.

It is an arithmetic number, because the mean of its divisors is an integer number (278534725).

Almost surely, 2^557069449 is an apocalyptic number.

It is an amenable number.

557069449 is a deficient number, since it is larger than the sum of its proper divisors (1).

557069449 is an equidigital number, since it uses as much as digits as its factorization.

557069449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The square root of 557069449 is about 23602.3187208376. The cubic root of 557069449 is about 822.8167306574.

The spelling of 557069449 in words is "five hundred fifty-seven million, sixty-nine thousand, four hundred forty-nine".