65250643 has 2 divisors, whose sum is σ = 65250644. Its totient is φ = 65250642.

The previous prime is 65250623. The next prime is 65250671. The reversal of 65250643 is 34605256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65250643 - 2¹³ = 65242451 is a prime.

It is not a weakly prime, because it can be changed into another prime (65250623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32625321 + 32625322.

It is an arithmetic number, because the mean of its divisors is an integer number (32625322).

Almost surely, 2^65250643 is an apocalyptic number.

65250643 is a deficient number, since it is larger than the sum of its proper divisors (1).

65250643 is an equidigital number, since it uses as much as digits as its factorization.

65250643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 65250643 is about 8077.7870113045. The cubic root of 65250643 is about 402.5887164755.

Adding to 65250643 its reverse (34605256), we get a palindrome (99855899).

The spelling of 65250643 in words is "sixty-five million, two hundred fifty thousand, six hundred forty-three".