53553 has 4 divisors (see below), whose sum is σ = 71408. Its totient is φ = 35700.

The previous prime is 53551. The next prime is 53569. The reversal of 53553 is 35535.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53553 - 2¹ = 53551 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8923 + ... + 8928.

It is an arithmetic number, because the mean of its divisors is an integer number (17852).

2⁵³⁵⁵³ is an apocalyptic number.

It is an amenable number.

53553 is a deficient number, since it is larger than the sum of its proper divisors (17855).

53553 is a wasteful number, since it uses less digits than its factorization.

53553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17854.

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

The square root of 53553 is about 231.4152112546. The cubic root of 53553 is about 37.6930489287.

It can be divided in two parts, 53 and 553, that added together give a palindrome (606).

The spelling of 53553 in words is "fifty-three thousand, five hundred fifty-three".