55798 has 8 divisors (see below), whose sum is σ = 87408. Its totient is φ = 26664.

The previous prime is 55793. The next prime is 55799. The reversal of 55798 is 89755.

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

It is a super-2 number, since 2×55798² = 6226833608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55793) by changing a digit.

55798 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 561 + ... + 652.

It is an arithmetic number, because the mean of its divisors is an integer number (10926).

2⁵⁵⁷⁹⁸ is an apocalyptic number.

55798 is a deficient number, since it is larger than the sum of its proper divisors (31610).

55798 is a wasteful number, since it uses less digits than its factorization.

55798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its digits is 12600, while the sum is 34.

The square root of 55798 is about 236.2160028449. The cubic root of 55798 is about 38.2125667927.

The spelling of 55798 in words is "fifty-five thousand, seven hundred ninety-eight".