65225513 has 2 divisors, whose sum is σ = 65225514. Its totient is φ = 65225512.

The previous prime is 65225509. The next prime is 65225533. The reversal of 65225513 is 31552256.

It is a happy number.

65225513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39904489 + 25321024 = 6317^2 + 5032^2 .

It is a cyclic number.

It is not a de Polignac number, because 65225513 - 2² = 65225509 is a prime.

It is a super-2 number, since 2×65225513² = 8508735092226338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65225533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32612756 + 32612757.

It is an arithmetic number, because the mean of its divisors is an integer number (32612757).

Almost surely, 2^65225513 is an apocalyptic number.

It is an amenable number.

65225513 is a deficient number, since it is larger than the sum of its proper divisors (1).

65225513 is an equidigital number, since it uses as much as digits as its factorization.

65225513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 29.

The square root of 65225513 is about 8076.2313612229. The cubic root of 65225513 is about 402.5370268009.

Adding to 65225513 its reverse (31552256), we get a palindrome (96777769).

The spelling of 65225513 in words is "sixty-five million, two hundred twenty-five thousand, five hundred thirteen".