65280001 has 2 divisors, whose sum is σ = 65280002. Its totient is φ = 65280000.

The previous prime is 65279999. The next prime is 65280011. The reversal of 65280001 is 10008256.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64641600 + 638401 = 8040^2 + 799^2 .

It is a cyclic number.

It is not a de Polignac number, because 65280001 - 2¹ = 65279999 is a prime.

It is a super-2 number, since 2×65280001² = 8522957061120002, which contains 22 as substring.

Together with 65279999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65280011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32640000 + 32640001.

It is an arithmetic number, because the mean of its divisors is an integer number (32640001).

Almost surely, 2^65280001 is an apocalyptic number.

It is an amenable number.

65280001 is a deficient number, since it is larger than the sum of its proper divisors (1).

65280001 is an equidigital number, since it uses as much as digits as its factorization.

65280001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 65280001 is about 8079.6040125739. The cubic root of 65280001 is about 402.6490858801.

Adding to 65280001 its reverse (10008256), we get a palindrome (75288257).

The spelling of 65280001 in words is "sixty-five million, two hundred eighty thousand, one".