54008491 has 2 divisors, whose sum is σ = 54008492. Its totient is φ = 54008490.

The previous prime is 54008489. The next prime is 54008561. The reversal of 54008491 is 19480045.

It is a happy number.

54008491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54008491 - 2¹ = 54008489 is a prime.

Together with 54008489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (54008441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27004245 + 27004246.

It is an arithmetic number, because the mean of its divisors is an integer number (27004246).

Almost surely, 2^54008491 is an apocalyptic number.

54008491 is a deficient number, since it is larger than the sum of its proper divisors (1).

54008491 is an equidigital number, since it uses as much as digits as its factorization.

54008491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 54008491 is about 7349.0469450127. The cubic root of 54008491 is about 377.9961250221.

The spelling of 54008491 in words is "fifty-four million, eight thousand, four hundred ninety-one".