53365643 has 2 divisors, whose sum is σ = 53365644. Its totient is φ = 53365642.

The previous prime is 53365607. The next prime is 53365649. The reversal of 53365643 is 34656335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53365643 - 2⁶ = 53365579 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53365649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26682821 + 26682822.

It is an arithmetic number, because the mean of its divisors is an integer number (26682822).

Almost surely, 2^53365643 is an apocalyptic number.

53365643 is a deficient number, since it is larger than the sum of its proper divisors (1).

53365643 is an equidigital number, since it uses as much as digits as its factorization.

53365643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 35.

The square root of 53365643 is about 7305.1791901363. The cubic root of 53365643 is about 376.4904076092.

The spelling of 53365643 in words is "fifty-three million, three hundred sixty-five thousand, six hundred forty-three".