55742 has 8 divisors (see below), whose sum is σ = 85536. Its totient is φ = 27232.

The previous prime is 55733. The next prime is 55763. The reversal of 55742 is 24755.

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

It is a zygodrome in base 6.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 203 + ... + 390.

It is an arithmetic number, because the mean of its divisors is an integer number (10692).

2⁵⁵⁷⁴² is an apocalyptic number.

55742 is a deficient number, since it is larger than the sum of its proper divisors (29794).

55742 is a wasteful number, since it uses less digits than its factorization.

55742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642.

The product of its digits is 1400, while the sum is 23.

The square root of 55742 is about 236.0974375126. The cubic root of 55742 is about 38.1997788791.

It can be divided in two parts, 55 and 742, that added together give a palindrome (797).

The spelling of 55742 in words is "fifty-five thousand, seven hundred forty-two".