55344403 has 4 divisors (see below), whose sum is σ = 55359360. Its totient is φ = 55329448.

The previous prime is 55344389. The next prime is 55344407. The reversal of 55344403 is 30444355.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55344403 - 2²¹ = 53247251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55344407) 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, 2601 + ... + 10837.

It is an arithmetic number, because the mean of its divisors is an integer number (13839840).

Almost surely, 2^55344403 is an apocalyptic number.

55344403 is a deficient number, since it is larger than the sum of its proper divisors (14957).

55344403 is an equidigital number, since it uses as much as digits as its factorization.

55344403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14956.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 55344403 is about 7439.3818963675. The cubic root of 55344403 is about 381.0873817620.

Adding to 55344403 its reverse (30444355), we get a palindrome (85788758).

The spelling of 55344403 in words is "fifty-five million, three hundred forty-four thousand, four hundred three".