556491713 has 4 divisors (see below), whose sum is σ = 556595028. Its totient is φ = 556388400.

The previous prime is 556491709. The next prime is 556491731. The reversal of 556491713 is 317194655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 477335104 + 79156609 = 21848^2 + 8897^2 .

It is a cyclic number.

It is not a de Polignac number, because 556491713 - 2² = 556491709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (556491613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43106 + ... + 54507.

It is an arithmetic number, because the mean of its divisors is an integer number (139148757).

Almost surely, 2^556491713 is an apocalyptic number.

It is an amenable number.

556491713 is a deficient number, since it is larger than the sum of its proper divisors (103315).

556491713 is an equidigital number, since it uses as much as digits as its factorization.

556491713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103314.

The product of its digits is 113400, while the sum is 41.

The square root of 556491713 is about 23590.0765789346. The cubic root of 556491713 is about 822.5321848808.

The spelling of 556491713 in words is "five hundred fifty-six million, four hundred ninety-one thousand, seven hundred thirteen".