56002656 has 48 divisors (see below), whose sum is σ = 147873600. Its totient is φ = 18557568.

The previous prime is 56002651. The next prime is 56002657. The reversal of 56002656 is 65620065.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56002651) 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, 15555 + ... + 18813.

It is an arithmetic number, because the mean of its divisors is an integer number (3080700).

Almost surely, 2^56002656 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 56002656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73936800).

56002656 is an abundant number, since it is smaller than the sum of its proper divisors (91870944).

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

56002656 is a wasteful number, since it uses less digits than its factorization.

56002656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451 (or 3443 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 56002656 is about 7483.4922329084. The cubic root of 56002656 is about 382.5922849651.

It can be divided in two parts, 5600 and 2656, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 56002656 in words is "fifty-six million, two thousand, six hundred fifty-six".