54004981 has 2 divisors, whose sum is σ = 54004982. Its totient is φ = 54004980.

The previous prime is 54004969. The next prime is 54005009. The reversal of 54004981 is 18940045.

It is a happy number.

54004981 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 can be written as a sum of positive squares in only one way, i.e., 31820881 + 22184100 = 5641^2 + 4710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54004981 is a prime.

It is a super-2 number, since 2×54004981² = 5833075945620722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54004921) 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, 27002490 + 27002491.

It is an arithmetic number, because the mean of its divisors is an integer number (27002491).

Almost surely, 2^54004981 is an apocalyptic number.

It is an amenable number.

54004981 is a deficient number, since it is larger than the sum of its proper divisors (1).

54004981 is an equidigital number, since it uses as much as digits as its factorization.

54004981 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 54004981 is about 7348.8081346569. The cubic root of 54004981 is about 377.9879362162.

The spelling of 54004981 in words is "fifty-four million, four thousand, nine hundred eighty-one".