56000220 has 48 divisors (see below), whose sum is σ = 165056640. Its totient is φ = 14147136.

The previous prime is 56000213. The next prime is 56000221. The reversal of 56000220 is 2200065.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 56000220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56000221) 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 15 ways as a sum of consecutive naturals, for example, 23422 + ... + 25701.

It is an arithmetic number, because the mean of its divisors is an integer number (3438680).

Almost surely, 2^56000220 is an apocalyptic number.

It is an amenable number.

56000220 is an abundant number, since it is smaller than the sum of its proper divisors (109056420).

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

56000220 is a wasteful number, since it uses less digits than its factorization.

56000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49154 (or 49152 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 56000220 is about 7483.3294729018. The cubic root of 56000220 is about 382.5867375596.

Adding to 56000220 its reverse (2200065), we get a palindrome (58200285).

The spelling of 56000220 in words is "fifty-six million, two hundred twenty", and thus it is an aban number.