56840000 has 210 divisors, whose sum is σ = 169609770. Its totient is φ = 18816000.

The previous prime is 56839999. The next prime is 56840011. The reversal of 56840000 is 4865.

It can be written as a sum of positive squares in 5 ways, for example, as 21603904 + 35236096 = 4648^2 + 5936^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1959986 + ... + 1960014.

Almost surely, 2^56840000 is an apocalyptic number.

56840000 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 56840000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84804885).

56840000 is an abundant number, since it is smaller than the sum of its proper divisors (112769770).

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

56840000 is an equidigital number, since it uses as much as digits as its factorization.

56840000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 56840000 is about 7539.2307299883. The cubic root of 56840000 is about 384.4896819984.

Adding to 56840000 its reverse (4865), we get a palindrome (56844865).

The spelling of 56840000 in words is "fifty-six million, eight hundred forty thousand".