556393793 has 2 divisors, whose sum is σ = 556393794. Its totient is φ = 556393792.

The previous prime is 556393781. The next prime is 556393861. The reversal of 556393793 is 397393655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556393744 + 49 = 23588^2 + 7^2 .

It is a cyclic number.

It is not a de Polignac number, because 556393793 - 2¹⁰ = 556392769 is a prime.

It is not a weakly prime, because it can be changed into another prime (556393723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278196896 + 278196897.

It is an arithmetic number, because the mean of its divisors is an integer number (278196897).

Almost surely, 2^556393793 is an apocalyptic number.

It is an amenable number.

556393793 is a deficient number, since it is larger than the sum of its proper divisors (1).

556393793 is an equidigital number, since it uses as much as digits as its factorization.

556393793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2296350, while the sum is 50.

The square root of 556393793 is about 23588.0010386637. The cubic root of 556393793 is about 822.4839379352.

The spelling of 556393793 in words is "five hundred fifty-six million, three hundred ninety-three thousand, seven hundred ninety-three".