556630256 has 80 divisors (see below), whose sum is σ = 1345788864. Its totient is φ = 217147392.

The previous prime is 556630241. The next prime is 556630267. The reversal of 556630256 is 652036655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103670 + ... + 108906.

Almost surely, 2^556630256 is an apocalyptic number.

556630256 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 556630256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672894432).

556630256 is an abundant number, since it is smaller than the sum of its proper divisors (789158608).

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

556630256 is a wasteful number, since it uses less digits than its factorization.

556630256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5338 (or 5332 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 38.

The square root of 556630256 is about 23593.0128639816. The cubic root of 556630256 is about 822.6004378415.

The spelling of 556630256 in words is "five hundred fifty-six million, six hundred thirty thousand, two hundred fifty-six".