54340209 has 48 divisors (see below), whose sum is σ = 103034880. Its totient is φ = 26736480.

The previous prime is 54340207. The next prime is 54340259. The reversal of 54340209 is 90204345.

It is not a de Polignac number, because 54340209 - 2¹ = 54340207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54340207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11104 + ... + 15230.

It is an arithmetic number, because the mean of its divisors is an integer number (2146560).

Almost surely, 2^54340209 is an apocalyptic number.

It is an amenable number.

54340209 is a deficient number, since it is larger than the sum of its proper divisors (48694671).

54340209 is a wasteful number, since it uses less digits than its factorization.

54340209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170 (or 4167 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 54340209 is about 7371.5811736696. The cubic root of 54340209 is about 378.7684250750.

The spelling of 54340209 in words is "fifty-four million, three hundred forty thousand, two hundred nine".