56897845056 has 672 divisors, whose sum is σ = 193136885760. Its totient is φ = 15864532992.

The previous prime is 56897845051. The next prime is 56897845061. The reversal of 56897845056 is 65054879865.

56897845056 is a `hidden beast` number, since 5 + 68 + 9 + 78 + 450 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (56897845051) and next prime (56897845061).

It is a junction number, because it is equal to n+sod(n) for n = 56897844984 and 56897845002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56897845051) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 448014465 + ... + 448014591.

It is an arithmetic number, because the mean of its divisors is an integer number (287406080).

Almost surely, 2^56897845056 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 56897845056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96568442880).

56897845056 is an abundant number, since it is smaller than the sum of its proper divisors (136239040704).

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

56897845056 is a wasteful number, since it uses less digits than its factorization.

56897845056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 63.

The spelling of 56897845056 in words is "fifty-six billion, eight hundred ninety-seven million, eight hundred forty-five thousand, fifty-six".