65930257 has 2 divisors, whose sum is σ = 65930258. Its totient is φ = 65930256.

The previous prime is 65930243. The next prime is 65930269. The reversal of 65930257 is 75203956.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33166081 + 32764176 = 5759^2 + 5724^2 .

It is a cyclic number.

It is not a de Polignac number, because 65930257 - 2¹¹ = 65928209 is a prime.

It is not a weakly prime, because it can be changed into another prime (65930287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32965128 + 32965129.

It is an arithmetic number, because the mean of its divisors is an integer number (32965129).

Almost surely, 2^65930257 is an apocalyptic number.

It is an amenable number.

65930257 is a deficient number, since it is larger than the sum of its proper divisors (1).

65930257 is an equidigital number, since it uses as much as digits as its factorization.

65930257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 65930257 is about 8119.7448851550. The cubic root of 65930257 is about 403.9816043155.

The spelling of 65930257 in words is "sixty-five million, nine hundred thirty thousand, two hundred fifty-seven".