65568401 has 2 divisors, whose sum is σ = 65568402. Its totient is φ = 65568400.

The previous prime is 65568323. The next prime is 65568409. The reversal of 65568401 is 10486556.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65044225 + 524176 = 8065^2 + 724^2 .

It is a cyclic number.

It is not a de Polignac number, because 65568401 - 2¹⁰ = 65567377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65568409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32784200 + 32784201.

It is an arithmetic number, because the mean of its divisors is an integer number (32784201).

Almost surely, 2^65568401 is an apocalyptic number.

It is an amenable number.

65568401 is a deficient number, since it is larger than the sum of its proper divisors (1).

65568401 is an equidigital number, since it uses as much as digits as its factorization.

65568401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 65568401 is about 8097.4317533401. The cubic root of 65568401 is about 403.2411682193.

The spelling of 65568401 in words is "sixty-five million, five hundred sixty-eight thousand, four hundred one".