554409856 has 128 divisors (see below), whose sum is σ = 1483292160. Its totient is φ = 199342080.

The previous prime is 554409853. The next prime is 554409901. The reversal of 554409856 is 658904455.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554409853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125965 + ... + 130291.

It is an arithmetic number, because the mean of its divisors is an integer number (11588220).

Almost surely, 2^554409856 is an apocalyptic number.

554409856 is a gapful number since it is divisible by the number (56) 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 554409856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741646080).

554409856 is an abundant number, since it is smaller than the sum of its proper divisors (928882304).

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

554409856 is a wasteful number, since it uses less digits than its factorization.

554409856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372 (or 4360 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 46.

The square root of 554409856 is about 23545.9095386014. The cubic root of 554409856 is about 821.5051949162.

The spelling of 554409856 in words is "five hundred fifty-four million, four hundred nine thousand, eight hundred fifty-six".