55013 has 8 divisors (see below), whose sum is σ = 65280. Its totient is φ = 45360.

The previous prime is 55009. The next prime is 55021. The reversal of 55013 is 31055.

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

It is not a de Polignac number, because 55013 - 2² = 55009 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55073) 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, 68 + ... + 338.

It is an arithmetic number, because the mean of its divisors is an integer number (8160).

2⁵⁵⁰¹³ is an apocalyptic number.

It is an amenable number.

55013 is a deficient number, since it is larger than the sum of its proper divisors (10267).

55013 is a wasteful number, since it uses less digits than its factorization.

55013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307.

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 55013 is about 234.5485024467. The cubic root of 55013 is about 38.0325206372.

Adding to 55013 its reverse (31055), we get a palindrome (86068).

The spelling of 55013 in words is "fifty-five thousand, thirteen".