54249973 has 2 divisors, whose sum is σ = 54249974. Its totient is φ = 54249972.

The previous prime is 54249971. The next prime is 54249977. The reversal of 54249973 is 37994245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43007364 + 11242609 = 6558^2 + 3353^2 .

It is a cyclic number.

It is not a de Polignac number, because 54249973 - 2¹ = 54249971 is a prime.

Together with 54249971, 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 (54249971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27124986 + 27124987.

It is an arithmetic number, because the mean of its divisors is an integer number (27124987).

Almost surely, 2^54249973 is an apocalyptic number.

It is an amenable number.

54249973 is a deficient number, since it is larger than the sum of its proper divisors (1).

54249973 is an equidigital number, since it uses as much as digits as its factorization.

54249973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 43.

The square root of 54249973 is about 7365.4580984485. The cubic root of 54249973 is about 378.5586511072.

The spelling of 54249973 in words is "fifty-four million, two hundred forty-nine thousand, nine hundred seventy-three".