65806051 has 2 divisors, whose sum is σ = 65806052. Its totient is φ = 65806050.

The previous prime is 65806049. The next prime is 65806057. The reversal of 65806051 is 15060856.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65806051 - 2¹ = 65806049 is a prime.

Together with 65806049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65806057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32903025 + 32903026.

It is an arithmetic number, because the mean of its divisors is an integer number (32903026).

Almost surely, 2^65806051 is an apocalyptic number.

65806051 is a deficient number, since it is larger than the sum of its proper divisors (1).

65806051 is an equidigital number, since it uses as much as digits as its factorization.

65806051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 65806051 is about 8112.0928865491. The cubic root of 65806051 is about 403.7277578829.

The spelling of 65806051 in words is "sixty-five million, eight hundred six thousand, fifty-one".