56720200 has 24 divisors (see below), whose sum is σ = 131874930. Its totient is φ = 22688000.

The previous prime is 56720189. The next prime is 56720203. The reversal of 56720200 is 202765.

56720200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 51065316 + 5654884 = 7146^2 + 2378^2 .

It is not an unprimeable number, because it can be changed into a prime (56720203) 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 5 ways as a sum of consecutive naturals, for example, 141601 + ... + 142000.

Almost surely, 2^56720200 is an apocalyptic number.

56720200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56720200 is an abundant number, since it is smaller than the sum of its proper divisors (75154730).

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

56720200 is a wasteful number, since it uses less digits than its factorization.

56720200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283617 (or 283608 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 56720200 is about 7531.2814314697. The cubic root of 56720200 is about 384.2193661239.

Adding to 56720200 its reverse (202765), we get a palindrome (56922965).

The spelling of 56720200 in words is "fifty-six million, seven hundred twenty thousand, two hundred".