56328870 has 64 divisors (see below), whose sum is σ = 147188160. Its totient is φ = 13713408.

The previous prime is 56328859. The next prime is 56328887. The reversal of 56328870 is 7882365.

56328870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 31 ways as a sum of consecutive naturals, for example, 37086 + ... + 38574.

It is an arithmetic number, because the mean of its divisors is an integer number (2299815).

Almost surely, 2^56328870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56328870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73594080).

56328870 is an abundant number, since it is smaller than the sum of its proper divisors (90859290).

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

56328870 is a wasteful number, since it uses less digits than its factorization.

56328870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 56328870 is about 7505.2561581867. The cubic root of 56328870 is about 383.3337105646. Note that the first 3 decimals are identical.

The spelling of 56328870 in words is "fifty-six million, three hundred twenty-eight thousand, eight hundred seventy".