54005851 has 2 divisors, whose sum is σ = 54005852. Its totient is φ = 54005850.

The previous prime is 54005837. The next prime is 54005873. The reversal of 54005851 is 15850045.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54005851 is a prime.

It is not a weakly prime, because it can be changed into another prime (54005881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27002925 + 27002926.

It is an arithmetic number, because the mean of its divisors is an integer number (27002926).

Almost surely, 2^54005851 is an apocalyptic number.

54005851 is a deficient number, since it is larger than the sum of its proper divisors (1).

54005851 is an equidigital number, since it uses as much as digits as its factorization.

54005851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 54005851 is about 7348.8673276907. The cubic root of 54005851 is about 377.9899659533.

Adding to 54005851 its reverse (15850045), we get a palindrome (69855896).

The spelling of 54005851 in words is "fifty-four million, five thousand, eight hundred fifty-one".