556838489 has 4 divisors (see below), whose sum is σ = 556951824. Its totient is φ = 556725156.

The previous prime is 556838473. The next prime is 556838521. The reversal of 556838489 is 984838655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 556838489 - 2⁴ = 556838473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556838449) 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, 48947 + ... + 59240.

It is an arithmetic number, because the mean of its divisors is an integer number (139237956).

Almost surely, 2^556838489 is an apocalyptic number.

It is an amenable number.

556838489 is a deficient number, since it is larger than the sum of its proper divisors (113335).

556838489 is a wasteful number, since it uses less digits than its factorization.

556838489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113334.

The product of its digits is 8294400, while the sum is 56.

The square root of 556838489 is about 23597.4254739791. The cubic root of 556838489 is about 822.7030021557.

The spelling of 556838489 in words is "five hundred fifty-six million, eight hundred thirty-eight thousand, four hundred eighty-nine".