56000218 has 16 divisors (see below), whose sum is σ = 88750080. Its totient is φ = 26458096.

The previous prime is 56000213. The next prime is 56000221. The reversal of 56000218 is 81200065.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (56000213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7546 + ... + 12997.

It is an arithmetic number, because the mean of its divisors is an integer number (5546880).

Almost surely, 2^56000218 is an apocalyptic number.

56000218 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

56000218 is a deficient number, since it is larger than the sum of its proper divisors (32749862).

56000218 is a wasteful number, since it uses less digits than its factorization.

56000218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20621.

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

The square root of 56000218 is about 7483.3293392714. The cubic root of 56000218 is about 382.5867330050.

The spelling of 56000218 in words is "fifty-six million, two hundred eighteen", and thus it is an aban number.