563579856 has 400 divisors, whose sum is σ = 2025179904. Its totient is φ = 147806208.

The previous prime is 563579831. The next prime is 563579857. The reversal of 563579856 is 658975365.

563579856 is a `hidden beast` number, since 5 + 63 + 579 + 8 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (6804000) is a multiple of the sum of its prime factors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563579857) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7720236 + ... + 7720308.

Almost surely, 2^563579856 is an apocalyptic number.

563579856 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 563579856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1012589952).

563579856 is an abundant number, since it is smaller than the sum of its proper divisors (1461600048).

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

563579856 is a wasteful number, since it uses less digits than its factorization.

563579856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 145 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The square root of 563579856 is about 23739.8368991870. The cubic root of 563579856 is about 826.0097124752.

It can be divided in two parts, 5635 and 79856, that added together give a triangular number (85491 = T₄₁₃).

The spelling of 563579856 in words is "five hundred sixty-three million, five hundred seventy-nine thousand, eight hundred fifty-six".