556494000 has 160 divisors (see below), whose sum is σ = 1809902016. Its totient is φ = 147097600.

The previous prime is 556493981. The next prime is 556494049. The reversal of 556494000 is 494655.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 821662 + ... + 822338.

Almost surely, 2^556494000 is an apocalyptic number.

556494000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556494000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904951008).

556494000 is an abundant number, since it is smaller than the sum of its proper divisors (1253408016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556494000 is a wasteful number, since it uses less digits than its factorization.

556494000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 556494000 is about 23590.1250526571. The cubic root of 556494000 is about 822.5333116592.

The spelling of 556494000 in words is "five hundred fifty-six million, four hundred ninety-four thousand".