54002989 has 2 divisors, whose sum is σ = 54002990. Its totient is φ = 54002988.

The previous prime is 54002987. The next prime is 54003043. The reversal of 54002989 is 98920045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37332100 + 16670889 = 6110^2 + 4083^2 .

It is a cyclic number.

It is not a de Polignac number, because 54002989 - 2¹ = 54002987 is a prime.

Together with 54002987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54002987) 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, 27001494 + 27001495.

It is an arithmetic number, because the mean of its divisors is an integer number (27001495).

Almost surely, 2^54002989 is an apocalyptic number.

It is an amenable number.

54002989 is a deficient number, since it is larger than the sum of its proper divisors (1).

54002989 is an equidigital number, since it uses as much as digits as its factorization.

54002989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 54002989 is about 7348.6726012253. The cubic root of 54002989 is about 377.9832887361.

The spelling of 54002989 in words is "fifty-four million, two thousand, nine hundred eighty-nine".