54243289 has 2 divisors, whose sum is σ = 54243290. Its totient is φ = 54243288.

The previous prime is 54243283. The next prime is 54243313. The reversal of 54243289 is 98234245.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54243225 + 64 = 7365^2 + 8^2 .

It is a cyclic number.

It is not a de Polignac number, because 54243289 - 2³ = 54243281 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54243281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27121644 + 27121645.

It is an arithmetic number, because the mean of its divisors is an integer number (27121645).

Almost surely, 2^54243289 is an apocalyptic number.

It is an amenable number.

54243289 is a deficient number, since it is larger than the sum of its proper divisors (1).

54243289 is an equidigital number, since it uses as much as digits as its factorization.

54243289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The square root of 54243289 is about 7365.0043448731. The cubic root of 54243289 is about 378.5431033885.

The spelling of 54243289 in words is "fifty-four million, two hundred forty-three thousand, two hundred eighty-nine".