56171328 has 56 divisors (see below), whose sum is σ = 152656032. Its totient is φ = 18215424.

The previous prime is 56171327. The next prime is 56171333. The reversal of 56171328 is 82317165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56171321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3151 + ... + 11057.

Almost surely, 2^56171328 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 56171328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76328016).

56171328 is an abundant number, since it is smaller than the sum of its proper divisors (96484704).

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

56171328 is a wasteful number, since it uses less digits than its factorization.

56171328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7959 (or 7949 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 56171328 is about 7494.7533648546. The cubic root of 56171328 is about 382.9760044230.

The spelling of 56171328 in words is "fifty-six million, one hundred seventy-one thousand, three hundred twenty-eight".