55205404 has 6 divisors (see below), whose sum is σ = 96609464. Its totient is φ = 27602700.

The previous prime is 55205377. The next prime is 55205419. The reversal of 55205404 is 40450255.

55205404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 as a sum of consecutive naturals, namely, 6900672 + ... + 6900679.

Almost surely, 2^55205404 is an apocalyptic number.

It is an amenable number.

55205404 is a deficient number, since it is larger than the sum of its proper divisors (41404060).

55205404 is a wasteful number, since it uses less digits than its factorization.

55205404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13801355 (or 13801353 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 55205404 is about 7430.0339164771. The cubic root of 55205404 is about 380.7680771294.

Adding to 55205404 its reverse (40450255), we get a palindrome (95655659).

The spelling of 55205404 in words is "fifty-five million, two hundred five thousand, four hundred four".