55963 has 4 divisors (see below), whose sum is σ = 56448. Its totient is φ = 55480.

The previous prime is 55949. The next prime is 55967. The reversal of 55963 is 36955.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55963 - 2⁵ = 55931 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (55967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45 + ... + 337.

It is an arithmetic number, because the mean of its divisors is an integer number (14112).

2⁵⁵⁹⁶³ is an apocalyptic number.

55963 is a deficient number, since it is larger than the sum of its proper divisors (485).

55963 is a wasteful number, since it uses less digits than its factorization.

55963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484.

The product of its digits is 4050, while the sum is 28.

The square root of 55963 is about 236.5650016380. The cubic root of 55963 is about 38.2501957926.

The spelling of 55963 in words is "fifty-five thousand, nine hundred sixty-three".