56489800 has 72 divisors (see below), whose sum is σ = 136182690. Its totient is φ = 21779200.

The previous prime is 56489747. The next prime is 56489803. The reversal of 56489800 is 898465.

It can be written as a sum of positive squares in 3 ways, for example, as 26481316 + 30008484 = 5146^2 + 5478^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (56489803) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 680559 + ... + 680641.

Almost surely, 2^56489800 is an apocalyptic number.

56489800 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 56489800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68091345).

56489800 is an abundant number, since it is smaller than the sum of its proper divisors (79692890).

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

56489800 is a wasteful number, since it uses less digits than its factorization.

56489800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 56489800 is about 7515.9696646541. The cubic root of 56489800 is about 383.6984213447.

The spelling of 56489800 in words is "fifty-six million, four hundred eighty-nine thousand, eight hundred".