53243279 has 2 divisors, whose sum is σ = 53243280. Its totient is φ = 53243278.

The previous prime is 53243251. The next prime is 53243327. The reversal of 53243279 is 97234235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53243279 - 2¹⁶ = 53177743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53243219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26621639 + 26621640.

It is an arithmetic number, because the mean of its divisors is an integer number (26621640).

Almost surely, 2^53243279 is an apocalyptic number.

53243279 is a deficient number, since it is larger than the sum of its proper divisors (1).

53243279 is an equidigital number, since it uses as much as digits as its factorization.

53243279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

The square root of 53243279 is about 7296.7992297993. The cubic root of 53243279 is about 376.2024312662.

The spelling of 53243279 in words is "fifty-three million, two hundred forty-three thousand, two hundred seventy-nine".