53555 has 4 divisors (see below), whose sum is σ = 64272. Its totient is φ = 42840.

The previous prime is 53551. The next prime is 53569. The reversal of 53555 is 55535.

It is a happy number.

53555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53555 - 2² = 53551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53555.

It is not an unprimeable number, because it can be changed into a prime (53551) 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, 5351 + ... + 5360.

It is an arithmetic number, because the mean of its divisors is an integer number (16068).

2⁵³⁵⁵⁵ is an apocalyptic number.

53555 is a deficient number, since it is larger than the sum of its proper divisors (10717).

53555 is a wasteful number, since it uses less digits than its factorization.

53555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10716.

The product of its digits is 1875, while the sum is 23.

The square root of 53555 is about 231.4195324513. The cubic root of 53555 is about 37.6935181533.

The spelling of 53555 in words is "fifty-three thousand, five hundred fifty-five".