573556993 has 2 divisors, whose sum is σ = 573556994. Its totient is φ = 573556992.

The previous prime is 573556987. The next prime is 573557011. The reversal of 573556993 is 399655375.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 548636929 + 24920064 = 23423^2 + 4992^2 .

It is a cyclic number.

It is not a de Polignac number, because 573556993 - 2⁵ = 573556961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 573556993.

It is not a weakly prime, because it can be changed into another prime (573556903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286778496 + 286778497.

It is an arithmetic number, because the mean of its divisors is an integer number (286778497).

Almost surely, 2^573556993 is an apocalyptic number.

It is an amenable number.

573556993 is a deficient number, since it is larger than the sum of its proper divisors (1).

573556993 is an equidigital number, since it uses as much as digits as its factorization.

573556993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3827250, while the sum is 52.

The square root of 573556993 is about 23949.0499394026. The cubic root of 573556993 is about 830.8555522183.

The spelling of 573556993 in words is "five hundred seventy-three million, five hundred fifty-six thousand, nine hundred ninety-three".