563881500 has 672 divisors, whose sum is σ = 2406208896. Its totient is φ = 111974400.

The previous prime is 563881471. The next prime is 563881511. The reversal of 563881500 is 5188365.

563881500 is a `hidden beast` number, since 5 + 638 + 8 + 15 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 33169492 + ... + 33169508.

It is an arithmetic number, because the mean of its divisors is an integer number (3580668).

Almost surely, 2^563881500 is an apocalyptic number.

563881500 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 563881500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1203104448).

563881500 is an abundant number, since it is smaller than the sum of its proper divisors (1842327396).

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

563881500 is a wasteful number, since it uses less digits than its factorization.

563881500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 563881500 is about 23746.1891679486. The cubic root of 563881500 is about 826.1570541705.

The spelling of 563881500 in words is "five hundred sixty-three million, eight hundred eighty-one thousand, five hundred".