5563818 has 72 divisors (see below), whose sum is σ = 13703040. Its totient is φ = 1628640.

The previous prime is 5563799. The next prime is 5563819. The reversal of 5563818 is 8183655.

5563818 is a `hidden beast` number, since 5 + 5 + 638 + 18 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5563819) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 94273 + ... + 94331.

It is an arithmetic number, because the mean of its divisors is an integer number (190320).

Almost surely, 2^5563818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5563818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6851520).

5563818 is an abundant number, since it is smaller than the sum of its proper divisors (8139222).

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

5563818 is a wasteful number, since it uses less digits than its factorization.

5563818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 108 counting only the distinct ones).

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

The square root of 5563818 is about 2358.7746819058. The cubic root of 5563818 is about 177.1975196129.

The spelling of 5563818 in words is "five million, five hundred sixty-three thousand, eight hundred eighteen".