65353861 has 2 divisors, whose sum is σ = 65353862. Its totient is φ = 65353860.

The previous prime is 65353843. The next prime is 65353891. The reversal of 65353861 is 16835356.

65353861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59444100 + 5909761 = 7710^2 + 2431^2 .

It is a cyclic number.

It is not a de Polignac number, because 65353861 - 2⁹ = 65353349 is a prime.

It is a super-2 number, since 2×65353861² = 8542254295214642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65353861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65353891) 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, 32676930 + 32676931.

It is an arithmetic number, because the mean of its divisors is an integer number (32676931).

Almost surely, 2^65353861 is an apocalyptic number.

It is an amenable number.

65353861 is a deficient number, since it is larger than the sum of its proper divisors (1).

65353861 is an equidigital number, since it uses as much as digits as its factorization.

65353861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 65353861 is about 8084.1734889845. The cubic root of 65353861 is about 402.8008855733.

The spelling of 65353861 in words is "sixty-five million, three hundred fifty-three thousand, eight hundred sixty-one".