65909453 has 2 divisors, whose sum is σ = 65909454. Its totient is φ = 65909452.

The previous prime is 65909447. The next prime is 65909479. The reversal of 65909453 is 35490956.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65334889 + 574564 = 8083^2 + 758^2 .

It is a cyclic number.

It is not a de Polignac number, because 65909453 - 2²⁰ = 64860877 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65909453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65909413) 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, 32954726 + 32954727.

It is an arithmetic number, because the mean of its divisors is an integer number (32954727).

Almost surely, 2^65909453 is an apocalyptic number.

It is an amenable number.

65909453 is a deficient number, since it is larger than the sum of its proper divisors (1).

65909453 is an equidigital number, since it uses as much as digits as its factorization.

65909453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 65909453 is about 8118.4637093480. The cubic root of 65909453 is about 403.9391083112.

The spelling of 65909453 in words is "sixty-five million, nine hundred nine thousand, four hundred fifty-three".