56785550140 has 48 divisors (see below), whose sum is σ = 134287017984. Its totient is φ = 19983182400.

The previous prime is 56785550137. The next prime is 56785550147. The reversal of 56785550140 is 4105558765.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56785550147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4156344 + ... + 4169983.

It is an arithmetic number, because the mean of its divisors is an integer number (2797646208).

Almost surely, 2^56785550140 is an apocalyptic number.

It is an amenable number.

56785550140 is an abundant number, since it is smaller than the sum of its proper divisors (77501467844).

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

56785550140 is a wasteful number, since it uses less digits than its factorization.

56785550140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326378 (or 8326376 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 46.

The spelling of 56785550140 in words is "fifty-six billion, seven hundred eighty-five million, five hundred fifty thousand, one hundred forty".