65452661 has 2 divisors, whose sum is σ = 65452662. Its totient is φ = 65452660.

The previous prime is 65452643. The next prime is 65452693. The reversal of 65452661 is 16625456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42172036 + 23280625 = 6494^2 + 4825^2 .

It is a cyclic number.

It is not a de Polignac number, because 65452661 - 2¹⁴ = 65436277 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_3865706 and since 65452661 and 3865706 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65452561) 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, 32726330 + 32726331.

It is an arithmetic number, because the mean of its divisors is an integer number (32726331).

Almost surely, 2^65452661 is an apocalyptic number.

It is an amenable number.

65452661 is a deficient number, since it is larger than the sum of its proper divisors (1).

65452661 is an equidigital number, since it uses as much as digits as its factorization.

65452661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 65452661 is about 8090.2818863127. The cubic root of 65452661 is about 403.0037641241.

The spelling of 65452661 in words is "sixty-five million, four hundred fifty-two thousand, six hundred sixty-one".