45455 has 4 divisors (see below), whose sum is σ = 54552. Its totient is φ = 36360.

The previous prime is 45439. The next prime is 45481. The reversal of 45455 is 55454.

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

It is not a de Polignac number, because 45455 - 2⁴ = 45439 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 45455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4541 + ... + 4550.

It is an arithmetic number, because the mean of its divisors is an integer number (13638).

2⁴⁵⁴⁵⁵ is an apocalyptic number.

45455 is a deficient number, since it is larger than the sum of its proper divisors (9097).

45455 is an equidigital number, since it uses as much as digits as its factorization.

45455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9096.

The product of its digits is 2000, while the sum is 23.

The square root of 45455 is about 213.2017823565. The cubic root of 45455 is about 35.6884117358.

Subtracting 45455 from its reverse (55454), we obtain a palindrome (9999).

The spelling of 45455 in words is "forty-five thousand, four hundred fifty-five".