54649549 has 2 divisors, whose sum is σ = 54649550. Its totient is φ = 54649548.

The previous prime is 54649547. The next prime is 54649583. The reversal of 54649549 is 94594645.

54649549 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., 52345225 + 2304324 = 7235^2 + 1518^2 .

It is a cyclic number.

It is not a de Polignac number, because 54649549 - 2¹ = 54649547 is a prime.

Together with 54649547, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 54649499 and 54649508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54649547) 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, 27324774 + 27324775.

It is an arithmetic number, because the mean of its divisors is an integer number (27324775).

Almost surely, 2^54649549 is an apocalyptic number.

It is an amenable number.

54649549 is a deficient number, since it is larger than the sum of its proper divisors (1).

54649549 is an equidigital number, since it uses as much as digits as its factorization.

54649549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 46.

The square root of 54649549 is about 7392.5333276219. The cubic root of 54649549 is about 379.4857980513.

The spelling of 54649549 in words is "fifty-four million, six hundred forty-nine thousand, five hundred forty-nine".