55992 has 16 divisors (see below), whose sum is σ = 140040. Its totient is φ = 18656.

The previous prime is 55987. The next prime is 55997. The reversal of 55992 is 29955.

It is an interprime number because it is at equal distance from previous prime (55987) and next prime (55997).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55997) by changing a digit.

55992 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, 1143 + ... + 1190.

2⁵⁵⁹⁹² is an apocalyptic number.

It is an amenable number.

55992 is an abundant number, since it is smaller than the sum of its proper divisors (84048).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70020).

55992 is a wasteful number, since it uses less digits than its factorization.

55992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342 (or 2338 counting only the distinct ones).

The product of its digits is 4050, while the sum is 30.

The square root of 55992 is about 236.6262876352. The cubic root of 55992 is about 38.2568017295.

The spelling of 55992 in words is "fifty-five thousand, nine hundred ninety-two".