56065656 has 64 divisors (see below), whose sum is σ = 151574400. Its totient is φ = 17221248.

The previous prime is 56065627. The next prime is 56065661. The reversal of 56065656 is 65656065.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 15211 + ... + 18533.

It is an arithmetic number, because the mean of its divisors is an integer number (2368350).

Almost surely, 2^56065656 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 56065656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75787200).

56065656 is an abundant number, since it is smaller than the sum of its proper divisors (95508744).

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

56065656 is a wasteful number, since it uses less digits than its factorization.

56065656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3388 (or 3384 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 56065656 is about 7487.7003145158. The cubic root of 56065656 is about 382.7356965042.

The spelling of 56065656 in words is "fifty-six million, sixty-five thousand, six hundred fifty-six".