65625311 has 2 divisors, whose sum is σ = 65625312. Its totient is φ = 65625310.

The previous prime is 65625299. The next prime is 65625319. The reversal of 65625311 is 11352656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65625311 - 2¹⁸ = 65363167 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65625319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32812655 + 32812656.

It is an arithmetic number, because the mean of its divisors is an integer number (32812656).

Almost surely, 2^65625311 is an apocalyptic number.

65625311 is a deficient number, since it is larger than the sum of its proper divisors (1).

65625311 is an equidigital number, since it uses as much as digits as its factorization.

65625311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 29.

The square root of 65625311 is about 8100.9450683238. The cubic root of 65625311 is about 403.3577986814.

Adding to 65625311 its reverse (11352656), we get a palindrome (76977967).

The spelling of 65625311 in words is "sixty-five million, six hundred twenty-five thousand, three hundred eleven".