556640513 has 16 divisors (see below), whose sum is σ = 655380096. Its totient is φ = 466093440.

The previous prime is 556640509. The next prime is 556640527. The reversal of 556640513 is 315046655.

It is a cyclic number.

It is not a de Polignac number, because 556640513 - 2² = 556640509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556640533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65645 + ... + 73637.

It is an arithmetic number, because the mean of its divisors is an integer number (40961256).

Almost surely, 2^556640513 is an apocalyptic number.

It is an amenable number.

556640513 is a deficient number, since it is larger than the sum of its proper divisors (98739583).

556640513 is a wasteful number, since it uses less digits than its factorization.

556640513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8504.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 556640513 is about 23593.2302366590. The cubic root of 556640513 is about 822.6054904838.

The spelling of 556640513 in words is "five hundred fifty-six million, six hundred forty thousand, five hundred thirteen".