5621800 has 24 divisors (see below), whose sum is σ = 13071150. Its totient is φ = 2248640.

The previous prime is 5621779. The next prime is 5621809. The reversal of 5621800 is 81265.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2184484 + 3437316 = 1478^2 + 1854^2 .

It is not an unprimeable number, because it can be changed into a prime (5621809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13855 + ... + 14254.

Almost surely, 2^5621800 is an apocalyptic number.

5621800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5621800 is an abundant number, since it is smaller than the sum of its proper divisors (7449350).

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

5621800 is a wasteful number, since it uses less digits than its factorization.

5621800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28125 (or 28116 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 5621800 is about 2371.0335299190. The cubic root of 5621800 is about 177.8109342093.

The spelling of 5621800 in words is "five million, six hundred twenty-one thousand, eight hundred".