5566820 has 48 divisors (see below), whose sum is σ = 14152320. Its totient is φ = 1795584.

The previous prime is 5566807. The next prime is 5566843. The reversal of 5566820 is 286655.

It is a happy 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, 1211 + ... + 3549.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

Almost surely, 2^5566820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5566820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7076160).

5566820 is an abundant number, since it is smaller than the sum of its proper divisors (8585500).

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

5566820 is a wasteful number, since it uses less digits than its factorization.

5566820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372 (or 2370 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 5566820 is about 2359.4109434348. The cubic root of 5566820 is about 177.2293833026.

The spelling of 5566820 in words is "five million, five hundred sixty-six thousand, eight hundred twenty".