65725633 has 2 divisors, whose sum is σ = 65725634. Its totient is φ = 65725632.

The previous prime is 65725631. The next prime is 65725657. The reversal of 65725633 is 33652756.

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., 33269824 + 32455809 = 5768^2 + 5697^2 .

It is a cyclic number.

It is not a de Polignac number, because 65725633 - 2¹ = 65725631 is a prime.

Together with 65725631, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 65725592 and 65725601.

It is not a weakly prime, because it can be changed into another prime (65725631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32862816 + 32862817.

It is an arithmetic number, because the mean of its divisors is an integer number (32862817).

Almost surely, 2^65725633 is an apocalyptic number.

It is an amenable number.

65725633 is a deficient number, since it is larger than the sum of its proper divisors (1).

65725633 is an equidigital number, since it uses as much as digits as its factorization.

65725633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 37.

The square root of 65725633 is about 8107.1346972898. The cubic root of 65725633 is about 403.5632329256.

The spelling of 65725633 in words is "sixty-five million, seven hundred twenty-five thousand, six hundred thirty-three".