54008809 has 2 divisors, whose sum is σ = 54008810. Its totient is φ = 54008808.

The previous prime is 54008791. The next prime is 54008819. The reversal of 54008809 is 90880045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53582400 + 426409 = 7320^2 + 653^2 .

It is a cyclic number.

It is not a de Polignac number, because 54008809 - 2¹¹ = 54006761 is a prime.

It is not a weakly prime, because it can be changed into another prime (54008819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27004404 + 27004405.

It is an arithmetic number, because the mean of its divisors is an integer number (27004405).

Almost surely, 2^54008809 is an apocalyptic number.

It is an amenable number.

54008809 is a deficient number, since it is larger than the sum of its proper divisors (1).

54008809 is an equidigital number, since it uses as much as digits as its factorization.

54008809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 54008809 is about 7349.0685804393. The cubic root of 54008809 is about 377.9968668964.

The spelling of 54008809 in words is "fifty-four million, eight thousand, eight hundred nine".