55384109 has 4 divisors (see below), whose sum is σ = 60419040. Its totient is φ = 50349180.

The previous prime is 55384097. The next prime is 55384111. The reversal of 55384109 is 90148355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55384109 - 2⁴ = 55384093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55384169) 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, 2517449 + ... + 2517470.

It is an arithmetic number, because the mean of its divisors is an integer number (15104760).

Almost surely, 2^55384109 is an apocalyptic number.

It is an amenable number.

55384109 is a deficient number, since it is larger than the sum of its proper divisors (5034931).

55384109 is a wasteful number, since it uses less digits than its factorization.

55384109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5034930.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 55384109 is about 7442.0500535807. The cubic root of 55384109 is about 381.1784950911.

The spelling of 55384109 in words is "fifty-five million, three hundred eighty-four thousand, one hundred nine".