53728243 has 2 divisors, whose sum is σ = 53728244. Its totient is φ = 53728242.

The previous prime is 53728237. The next prime is 53728261. The reversal of 53728243 is 34282735.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53728243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53728199 and 53728208.

It is not a weakly prime, because it can be changed into another prime (53720243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26864121 + 26864122.

It is an arithmetic number, because the mean of its divisors is an integer number (26864122).

Almost surely, 2^53728243 is an apocalyptic number.

53728243 is a deficient number, since it is larger than the sum of its proper divisors (1).

53728243 is an equidigital number, since it uses as much as digits as its factorization.

53728243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 53728243 is about 7329.9551840376. The cubic root of 53728243 is about 377.3411884066.

The spelling of 53728243 in words is "fifty-three million, seven hundred twenty-eight thousand, two hundred forty-three".