56385132040 has 64 divisors (see below), whose sum is σ = 132520095360. Its totient is φ = 21551016960.

The previous prime is 56385131993. The next prime is 56385132049. The reversal of 56385132040 is 4023158365.

It is not an unprimeable number, because it can be changed into a prime (56385132049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 867475 + ... + 930205.

It is an arithmetic number, because the mean of its divisors is an integer number (2070626490).

Almost surely, 2^56385132040 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 56385132040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66260047680).

56385132040 is an abundant number, since it is smaller than the sum of its proper divisors (76134963320).

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

56385132040 is a wasteful number, since it uses less digits than its factorization.

56385132040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63742 (or 63738 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 56385132040 in words is "fifty-six billion, three hundred eighty-five million, one hundred thirty-two thousand, forty".