54048409 has 4 divisors (see below), whose sum is σ = 54411300. Its totient is φ = 53685520.

The previous prime is 54048391. The next prime is 54048437. The reversal of 54048409 is 90484045.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25532809 + 28515600 = 5053^2 + 5340^2 .

It is a cyclic number.

It is not a de Polignac number, because 54048409 - 2⁹ = 54047897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54048509) 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, 181222 + ... + 181519.

It is an arithmetic number, because the mean of its divisors is an integer number (13602825).

Almost surely, 2^54048409 is an apocalyptic number.

It is an amenable number.

54048409 is a deficient number, since it is larger than the sum of its proper divisors (362891).

54048409 is a wasteful number, since it uses less digits than its factorization.

54048409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362890.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 54048409 is about 7351.7623057332. The cubic root of 54048409 is about 378.0892284900.

The spelling of 54048409 in words is "fifty-four million, forty-eight thousand, four hundred nine".