557894034521 has 2 divisors, whose sum is σ = 557894034522. Its totient is φ = 557894034520.

The previous prime is 557894034469. The next prime is 557894034547. The reversal of 557894034521 is 125430498755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 457328940121 + 100565094400 = 676261^2 + 317120^2 .

It is a cyclic number.

It is not a de Polignac number, because 557894034521 - 2¹⁸ = 557893772377 is a prime.

It is a super-2 number, since 2×557894034521² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (557894034421) 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, 278947017260 + 278947017261.

It is an arithmetic number, because the mean of its divisors is an integer number (278947017261).

Almost surely, 2^557894034521 is an apocalyptic number.

It is an amenable number.

557894034521 is a deficient number, since it is larger than the sum of its proper divisors (1).

557894034521 is an equidigital number, since it uses as much as digits as its factorization.

557894034521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048000, while the sum is 53.

The spelling of 557894034521 in words is "five hundred fifty-seven billion, eight hundred ninety-four million, thirty-four thousand, five hundred twenty-one".