54208609 has 12 divisors (see below), whose sum is σ = 67086336. Its totient is φ = 42889392.

The previous prime is 54208607. The next prime is 54208613. The reversal of 54208609 is 90680245.

It is a happy number.

It is not a de Polignac number, because 54208609 - 2¹ = 54208607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54208603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21729 + ... + 24094.

It is an arithmetic number, because the mean of its divisors is an integer number (5590528).

Almost surely, 2^54208609 is an apocalyptic number.

It is an amenable number.

54208609 is a deficient number, since it is larger than the sum of its proper divisors (12877727).

54208609 is a wasteful number, since it uses less digits than its factorization.

54208609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45856 (or 45843 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 54208609 is about 7362.6495910100. The cubic root of 54208609 is about 378.4624133849.

The spelling of 54208609 in words is "fifty-four million, two hundred eight thousand, six hundred nine".