556547989 has 8 divisors (see below), whose sum is σ = 590016960. Its totient is φ = 523160256.

The previous prime is 556547987. The next prime is 556548001. The reversal of 556547989 is 989745655.

556547989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 556547989 - 2¹ = 556547987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556547987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5899 + ... + 33880.

It is an arithmetic number, because the mean of its divisors is an integer number (73752120).

Almost surely, 2^556547989 is an apocalyptic number.

It is an amenable number.

556547989 is a deficient number, since it is larger than the sum of its proper divisors (33468971).

556547989 is a wasteful number, since it uses less digits than its factorization.

556547989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40619.

The product of its digits is 13608000, while the sum is 58.

The square root of 556547989 is about 23591.2693384650. The cubic root of 556547989 is about 822.5599105173.

The spelling of 556547989 in words is "five hundred fifty-six million, five hundred forty-seven thousand, nine hundred eighty-nine".