56530500 has 144 divisors (see below), whose sum is σ = 179053056. Its totient is φ = 13852800.

The previous prime is 56530433. The next prime is 56530501. The reversal of 56530500 is 503565.

56530500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (56530501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253389 + ... + 253611.

It is an arithmetic number, because the mean of its divisors is an integer number (1243424).

Almost surely, 2^56530500 is an apocalyptic number.

56530500 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 56530500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89526528).

56530500 is an abundant number, since it is smaller than the sum of its proper divisors (122522556).

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

56530500 is a wasteful number, since it uses less digits than its factorization.

56530500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 56530500 is about 7518.6767452791. The cubic root of 56530500 is about 383.7905487539.

The spelling of 56530500 in words is "fifty-six million, five hundred thirty thousand, five hundred".