24400055 has 4 divisors (see below), whose sum is σ = 29280072. Its totient is φ = 19520040.

The previous prime is 24400039. The next prime is 24400081. The reversal of 24400055 is 55000442.

It is a happy number.

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

It is not a de Polignac number, because 24400055 - 2⁴ = 24400039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2440001 + ... + 2440010.

It is an arithmetic number, because the mean of its divisors is an integer number (7320018).

Almost surely, 2^24400055 is an apocalyptic number.

24400055 is a deficient number, since it is larger than the sum of its proper divisors (4880017).

24400055 is an equidigital number, since it uses as much as digits as its factorization.

24400055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880016.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 24400055 is about 4939.6411813005. The cubic root of 24400055 is about 290.0438102659.

Adding to 24400055 its reverse (55000442), we get a palindrome (79400497).

The spelling of 24400055 in words is "twenty-four million, four hundred thousand, fifty-five".