54243649 has 2 divisors, whose sum is σ = 54243650. Its totient is φ = 54243648.

The previous prime is 54243587. The next prime is 54243667. The reversal of 54243649 is 94634245.

It is a happy number.

54243649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31136400 + 23107249 = 5580^2 + 4807^2 .

It is a cyclic number.

It is not a de Polignac number, because 54243649 - 2¹¹ = 54241601 is a prime.

It is not a weakly prime, because it can be changed into another prime (54253649) 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, 27121824 + 27121825.

It is an arithmetic number, because the mean of its divisors is an integer number (27121825).

Almost surely, 2^54243649 is an apocalyptic number.

It is an amenable number.

54243649 is a deficient number, since it is larger than the sum of its proper divisors (1).

54243649 is an equidigital number, since it uses as much as digits as its factorization.

54243649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The square root of 54243649 is about 7365.0287847367. The cubic root of 54243649 is about 378.5439408206.

The spelling of 54243649 in words is "fifty-four million, two hundred forty-three thousand, six hundred forty-nine".