556825643 has 4 divisors (see below), whose sum is σ = 607446168. Its totient is φ = 506205120.

The previous prime is 556825639. The next prime is 556825673. The reversal of 556825643 is 346528655.

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

It is a cyclic number.

It is not a de Polignac number, because 556825643 - 2² = 556825639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556825594 and 556825603.

It is not an unprimeable number, because it can be changed into a prime (556825613) 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, 25310246 + ... + 25310267.

It is an arithmetic number, because the mean of its divisors is an integer number (151861542).

Almost surely, 2^556825643 is an apocalyptic number.

556825643 is a deficient number, since it is larger than the sum of its proper divisors (50620525).

556825643 is a wasteful number, since it uses less digits than its factorization.

556825643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50620524.

The product of its digits is 864000, while the sum is 44.

The square root of 556825643 is about 23597.1532816990. The cubic root of 556825643 is about 822.6966756509.

The spelling of 556825643 in words is "five hundred fifty-six million, eight hundred twenty-five thousand, six hundred forty-three".