65953193 has 2 divisors, whose sum is σ = 65953194. Its totient is φ = 65953192.

The previous prime is 65953189. The next prime is 65953207. The reversal of 65953193 is 39135956.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34727449 + 31225744 = 5893^2 + 5588^2 .

It is a cyclic number.

It is not a de Polignac number, because 65953193 - 2² = 65953189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_3893477 and since 65953193 and 3893477 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65953193.

It is not a weakly prime, because it can be changed into another prime (65953493) 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, 32976596 + 32976597.

It is an arithmetic number, because the mean of its divisors is an integer number (32976597).

Almost surely, 2^65953193 is an apocalyptic number.

It is an amenable number.

65953193 is a deficient number, since it is larger than the sum of its proper divisors (1).

65953193 is an equidigital number, since it uses as much as digits as its factorization.

65953193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109350, while the sum is 41.

The square root of 65953193 is about 8121.1571219870. The cubic root of 65953193 is about 404.0284449632.

The spelling of 65953193 in words is "sixty-five million, nine hundred fifty-three thousand, one hundred ninety-three".