56857742 has 8 divisors (see below), whose sum is σ = 85361232. Its totient is φ = 28404000.

The previous prime is 56857727. The next prime is 56857753. The reversal of 56857742 is 24775865.

56857742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 56857693 and 56857702.

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 3 ways as a sum of consecutive naturals, for example, 9434 + ... + 14237.

It is an arithmetic number, because the mean of its divisors is an integer number (10670154).

Almost surely, 2^56857742 is an apocalyptic number.

56857742 is a deficient number, since it is larger than the sum of its proper divisors (28503490).

56857742 is a wasteful number, since it uses less digits than its factorization.

56857742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24874.

The product of its digits is 470400, while the sum is 44.

The square root of 56857742 is about 7540.4072834297. The cubic root of 56857742 is about 384.5296826218.

The spelling of 56857742 in words is "fifty-six million, eight hundred fifty-seven thousand, seven hundred forty-two".