56067640 has 48 divisors (see below), whose sum is σ = 128835000. Its totient is φ = 21959808.

The previous prime is 56067637. The next prime is 56067703. The reversal of 56067640 is 4676065.

56067640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 56067596 and 56067605.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 112111 + ... + 112609.

Almost surely, 2^56067640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56067640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64417500).

56067640 is an abundant number, since it is smaller than the sum of its proper divisors (72767360).

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

56067640 is a wasteful number, since it uses less digits than its factorization.

56067640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 56067640 is about 7487.8327972785. The cubic root of 56067640 is about 382.7402110842.

The spelling of 56067640 in words is "fifty-six million, sixty-seven thousand, six hundred forty".