56642 has 8 divisors (see below), whose sum is σ = 86016. Its totient is φ = 27972.

The previous prime is 56633. The next prime is 56659. The reversal of 56642 is 24665.

56642 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 nialpdrome in base 16.

It is an unprimeable number.

56642 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143 + ... + 365.

It is an arithmetic number, because the mean of its divisors is an integer number (10752).

2⁵⁶⁶⁴² is an apocalyptic number.

56642 is a deficient number, since it is larger than the sum of its proper divisors (29374).

56642 is a wasteful number, since it uses less digits than its factorization.

56642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352.

The product of its digits is 1440, while the sum is 23.

The square root of 56642 is about 237.9957982822. The cubic root of 56642 is about 38.4042710816.

Adding to 56642 its sum of digits (23), we get a palindrome (56665).

The spelling of 56642 in words is "fifty-six thousand, six hundred forty-two".