557530073 has 2 divisors, whose sum is σ = 557530074. Its totient is φ = 557530072.

The previous prime is 557530067. The next prime is 557530081. The reversal of 557530073 is 370035755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 423248329 + 134281744 = 20573^2 + 11588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557530073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (557530033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278765036 + 278765037.

It is an arithmetic number, because the mean of its divisors is an integer number (278765037).

Almost surely, 2^557530073 is an apocalyptic number.

It is an amenable number.

557530073 is a deficient number, since it is larger than the sum of its proper divisors (1).

557530073 is an equidigital number, since it uses as much as digits as its factorization.

557530073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55125, while the sum is 35.

The square root of 557530073 is about 23612.0747288331. The cubic root of 557530073 is about 823.0434556606.

The spelling of 557530073 in words is "five hundred fifty-seven million, five hundred thirty thousand, seventy-three".