56387142 has 48 divisors (see below), whose sum is σ = 142490400. Its totient is φ = 16108848.

The previous prime is 56387141. The next prime is 56387143. The reversal of 56387142 is 24178365.

56387142 is a `hidden beast` number, since 5 + 638 + 7 + 14 + 2 = 666.

56387142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56387141) and next prime (56387143).

It is a junction number, because it is equal to n+sod(n) for n = 56387097 and 56387106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56387141) 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 23 ways as a sum of consecutive naturals, for example, 1608 + ... + 10740.

It is an arithmetic number, because the mean of its divisors is an integer number (2968550).

Almost surely, 2^56387142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56387142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71245200).

56387142 is an abundant number, since it is smaller than the sum of its proper divisors (86103258).

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

56387142 is a wasteful number, since it uses less digits than its factorization.

56387142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9162 (or 9145 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 56387142 is about 7509.1372340636. The cubic root of 56387142 is about 383.4658507601.

The spelling of 56387142 in words is "fifty-six million, three hundred eighty-seven thousand, one hundred forty-two".