54055909 has 4 divisors (see below), whose sum is σ = 55799680. Its totient is φ = 52312140.

The previous prime is 54055891. The next prime is 54055951. The reversal of 54055909 is 90955045.

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 54055909 - 2¹⁷ = 53924837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54355909) 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, 871839 + ... + 871900.

It is an arithmetic number, because the mean of its divisors is an integer number (13949920).

Almost surely, 2^54055909 is an apocalyptic number.

It is an amenable number.

54055909 is a deficient number, since it is larger than the sum of its proper divisors (1743771).

54055909 is a wasteful number, since it uses less digits than its factorization.

54055909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743770.

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 54055909 is about 7352.2723698187. The cubic root of 54055909 is about 378.1067161343.

The spelling of 54055909 in words is "fifty-four million, fifty-five thousand, nine hundred nine".