55896 has 32 divisors (see below), whose sum is σ = 149040. Its totient is φ = 17408.

The previous prime is 55889. The next prime is 55897. The reversal of 55896 is 69855.

Added to its reverse (69855) it gives a triangular number (125751 = T₅₀₁).

55896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340 + ... + 476.

2⁵⁵⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74520).

55896 is an abundant number, since it is smaller than the sum of its proper divisors (93144).

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

55896 is a wasteful number, since it uses less digits than its factorization.

55896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 159 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 55896 is about 236.4233491007. The cubic root of 55896 is about 38.2349250690.

Adding to 55896 its reverse (69855), we get a triangular number (125751 = T₅₀₁).

The spelling of 55896 in words is "fifty-five thousand, eight hundred ninety-six".