66232597 has 2 divisors, whose sum is σ = 66232598. Its totient is φ = 66232596.

The previous prime is 66232511. The next prime is 66232601. The reversal of 66232597 is 79523266.

66232597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62869041 + 3363556 = 7929^2 + 1834^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66232597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66232297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33116298 + 33116299.

It is an arithmetic number, because the mean of its divisors is an integer number (33116299).

Almost surely, 2^66232597 is an apocalyptic number.

It is an amenable number.

66232597 is a deficient number, since it is larger than the sum of its proper divisors (1).

66232597 is an equidigital number, since it uses as much as digits as its factorization.

66232597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The square root of 66232597 is about 8138.3411700420. The cubic root of 66232597 is about 404.5981829899.

It can be divided in two parts, 6623259 and 7, that added together give a palindrome (6623266).

The spelling of 66232597 in words is "sixty-six million, two hundred thirty-two thousand, five hundred ninety-seven".