56216000 has 56 divisors (see below), whose sum is σ = 139238736. Its totient is φ = 22483200.

The previous prime is 56215993. The next prime is 56216009. The reversal of 56216000 is 61265.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56216009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4487 + ... + 11513.

It is an arithmetic number, because the mean of its divisors is an integer number (2486406).

Almost surely, 2^56216000 is an apocalyptic number.

56216000 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 56216000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69619368).

56216000 is an abundant number, since it is smaller than the sum of its proper divisors (83022736).

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

56216000 is an equidigital number, since it uses as much as digits as its factorization.

56216000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7054 (or 7034 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 56216000 is about 7497.7329907113. The cubic root of 56216000 is about 383.0775020576.

Adding to 56216000 its reverse (61265), we get a palindrome (56277265).

The spelling of 56216000 in words is "fifty-six million, two hundred sixteen thousand".