56897443671552 has 400 divisors, whose sum is σ = 185318100025344. Its totient is φ = 17236468224000.

The previous prime is 56897443671533. The next prime is 56897443671559. The reversal of 56897443671552 is 25517634479865.

56897443671552 is a `hidden beast` number, since 5 + 6 + 8 + 9 + 7 + 4 + 4 + 3 + 67 + 1 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56897443671559) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1683787777 + ... + 1683821567.

Almost surely, 2^{56897443671552} 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 56897443671552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92659050012672).

56897443671552 is an abundant number, since it is smaller than the sum of its proper divisors (128420656353792).

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

56897443671552 is a wasteful number, since it uses less digits than its factorization.

56897443671552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37523 (or 37498 counting only the distinct ones).

The product of its digits is 1524096000, while the sum is 72.

The spelling of 56897443671552 in words is "fifty-six trillion, eight hundred ninety-seven billion, four hundred forty-three million, six hundred seventy-one thousand, five hundred fifty-two".