53665267 has 2 divisors, whose sum is σ = 53665268. Its totient is φ = 53665266.

The previous prime is 53665237. The next prime is 53665289. The reversal of 53665267 is 76256635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53665267 - 2¹⁹ = 53140979 is a prime.

It is not a weakly prime, because it can be changed into another prime (53665217) 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, 26832633 + 26832634.

It is an arithmetic number, because the mean of its divisors is an integer number (26832634).

Almost surely, 2^53665267 is an apocalyptic number.

53665267 is a deficient number, since it is larger than the sum of its proper divisors (1).

53665267 is an equidigital number, since it uses as much as digits as its factorization.

53665267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 40.

The square root of 53665267 is about 7325.6581274313. The cubic root of 53665267 is about 377.1937009279.

The spelling of 53665267 in words is "fifty-three million, six hundred sixty-five thousand, two hundred sixty-seven".