65422513 has 4 divisors (see below), whose sum is σ = 70455028. Its totient is φ = 60390000.

The previous prime is 65422501. The next prime is 65422517. The reversal of 65422513 is 31522456.

65422513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20358144 + 45064369 = 4512^2 + 6713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65422513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65422517) 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 in 3 ways as a sum of consecutive naturals, for example, 2516238 + ... + 2516263.

It is an arithmetic number, because the mean of its divisors is an integer number (17613757).

Almost surely, 2^65422513 is an apocalyptic number.

It is an amenable number.

65422513 is a deficient number, since it is larger than the sum of its proper divisors (5032515).

65422513 is a wasteful number, since it uses less digits than its factorization.

65422513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032514.

The product of its digits is 7200, while the sum is 28.

The square root of 65422513 is about 8088.4184486215. The cubic root of 65422513 is about 402.9418790751.

Adding to 65422513 its reverse (31522456), we get a palindrome (96944969).

The spelling of 65422513 in words is "sixty-five million, four hundred twenty-two thousand, five hundred thirteen".