45055 has 4 divisors (see below), whose sum is σ = 54072. Its totient is φ = 36040.

The previous prime is 45053. The next prime is 45061. The reversal of 45055 is 55054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55054 = 2 ⋅27527.

It is not a de Polignac number, because 45055 - 2¹ = 45053 is a prime.

It is a Duffinian number.

It is a plaindrome in base 4, base 8 and base 16.

It is a nialpdrome in base 6.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45053) 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, 4501 + ... + 4510.

It is an arithmetic number, because the mean of its divisors is an integer number (13518).

2⁴⁵⁰⁵⁵ is an apocalyptic number.

45055 is a deficient number, since it is larger than the sum of its proper divisors (9017).

45055 is an equidigital number, since it uses as much as digits as its factorization.

45055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9016.

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 45055 is about 212.2616310123. The cubic root of 45055 is about 35.5834181919.

Subtracting 45055 from its reverse (55054), we obtain a palindrome (9999).

It can be divided in two parts, 450 and 55, that added together give a palindrome (505).

The spelling of 45055 in words is "forty-five thousand, fifty-five".