65608603 has 2 divisors, whose sum is σ = 65608604. Its totient is φ = 65608602.

The previous prime is 65608601. The next prime is 65608619. The reversal of 65608603 is 30680656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65608603 - 2¹ = 65608601 is a prime.

It is a super-2 number, since 2×65608603² = 8608977575223218, which contains 22 as substring.

Together with 65608601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65608601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32804301 + 32804302.

It is an arithmetic number, because the mean of its divisors is an integer number (32804302).

Almost surely, 2^65608603 is an apocalyptic number.

65608603 is a deficient number, since it is larger than the sum of its proper divisors (1).

65608603 is an equidigital number, since it uses as much as digits as its factorization.

65608603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 65608603 is about 8099.9137649731. The cubic root of 65608603 is about 403.3235645624.

The spelling of 65608603 in words is "sixty-five million, six hundred eight thousand, six hundred three".