65503201 has 2 divisors, whose sum is σ = 65503202. Its totient is φ = 65503200.

The previous prime is 65503189. The next prime is 65503211. The reversal of 65503201 is 10230556.

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., 41990400 + 23512801 = 6480^2 + 4849^2 .

It is a cyclic number.

It is not a de Polignac number, because 65503201 - 2⁵ = 65503169 is a prime.

It is not a weakly prime, because it can be changed into another prime (65503211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32751600 + 32751601.

It is an arithmetic number, because the mean of its divisors is an integer number (32751601).

Almost surely, 2^65503201 is an apocalyptic number.

It is an amenable number.

65503201 is a deficient number, since it is larger than the sum of its proper divisors (1).

65503201 is an equidigital number, since it uses as much as digits as its factorization.

65503201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 65503201 is about 8093.4047841437. The cubic root of 65503201 is about 403.1074653832.

Adding to 65503201 its reverse (10230556), we get a palindrome (75733757).

The spelling of 65503201 in words is "sixty-five million, five hundred three thousand, two hundred one".