55533 has 8 divisors (see below), whose sum is σ = 75168. Its totient is φ = 36464.

The previous prime is 55529. The next prime is 55541. The reversal of 55533 is 33555.

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

It is a cyclic number.

It is not a de Polignac number, because 55533 - 2² = 55529 is a prime.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55333) 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, 235 + ... + 407.

It is an arithmetic number, because the mean of its divisors is an integer number (9396).

2⁵⁵⁵³³ is an apocalyptic number.

It is an amenable number.

55533 is a deficient number, since it is larger than the sum of its proper divisors (19635).

55533 is a wasteful number, since it uses less digits than its factorization.

55533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283.

The product of its digits is 1125, while the sum is 21.

The square root of 55533 is about 235.6544079791. The cubic root of 55533 is about 38.1519767863.

The spelling of 55533 in words is "fifty-five thousand, five hundred thirty-three".