56170140 has 192 divisors, whose sum is σ = 184246272. Its totient is φ = 12672000.

The previous prime is 56170139. The next prime is 56170223. The reversal of 56170140 is 4107165.

56170140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56170140.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 556090 + ... + 556190.

It is an arithmetic number, because the mean of its divisors is an integer number (959616).

Almost surely, 2^56170140 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 56170140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92123136).

56170140 is an abundant number, since it is smaller than the sum of its proper divisors (128076132).

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

56170140 is a wasteful number, since it uses less digits than its factorization.

56170140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 56170140 is about 7494.6741089923. The cubic root of 56170140 is about 382.9733044768.

The spelling of 56170140 in words is "fifty-six million, one hundred seventy thousand, one hundred forty".