53743309 has 2 divisors, whose sum is σ = 53743310. Its totient is φ = 53743308.

The previous prime is 53743303. The next prime is 53743331. The reversal of 53743309 is 90334735.

53743309 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., 40998409 + 12744900 = 6403^2 + 3570^2 .

It is a cyclic number.

It is not a de Polignac number, because 53743309 - 2³ = 53743301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53743301) 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, 26871654 + 26871655.

It is an arithmetic number, because the mean of its divisors is an integer number (26871655).

Almost surely, 2^53743309 is an apocalyptic number.

It is an amenable number.

53743309 is a deficient number, since it is larger than the sum of its proper divisors (1).

53743309 is an equidigital number, since it uses as much as digits as its factorization.

53743309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 34.

The square root of 53743309 is about 7330.9828126930. The cubic root of 53743309 is about 377.3764553396.

The spelling of 53743309 in words is "fifty-three million, seven hundred forty-three thousand, three hundred nine".