28553756056 has 32 divisors (see below), whose sum is σ = 61792440480. Its totient is φ = 12116160000.

The previous prime is 28553756051. The next prime is 28553756071. The reversal of 28553756056 is 65065735582.

It is a junction number, because it is equal to n+sod(n) for n = 28553755994 and 28553756012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28553756051) 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, 2518545 + ... + 2529856.

It is an arithmetic number, because the mean of its divisors is an integer number (1931013765).

Almost surely, 2^28553756056 is an apocalyptic number.

It is an amenable number.

28553756056 is an abundant number, since it is smaller than the sum of its proper divisors (33238684424).

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

28553756056 is a wasteful number, since it uses less digits than its factorization.

28553756056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048515 (or 5048511 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 28553756056 in words is "twenty-eight billion, five hundred fifty-three million, seven hundred fifty-six thousand, fifty-six".