5681800 has 24 divisors (see below), whose sum is σ = 13210650. Its totient is φ = 2272640.

The previous prime is 5681777. The next prime is 5681803. The reversal of 5681800 is 81865.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4553956 + 1127844 = 2134^2 + 1062^2 .

It is not an unprimeable number, because it can be changed into a prime (5681803) 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, 14005 + ... + 14404.

Almost surely, 2^5681800 is an apocalyptic number.

5681800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5681800 is an abundant number, since it is smaller than the sum of its proper divisors (7528850).

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

5681800 is a wasteful number, since it uses less digits than its factorization.

5681800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28425 (or 28416 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 5681800 is about 2383.6526592606. The cubic root of 5681800 is about 178.4412735381.

The spelling of 5681800 in words is "five million, six hundred eighty-one thousand, eight hundred".