65425849 has 2 divisors, whose sum is σ = 65425850. Its totient is φ = 65425848.

The previous prime is 65425847. The next prime is 65425859. The reversal of 65425849 is 94852456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62726400 + 2699449 = 7920^2 + 1643^2 .

It is a cyclic number.

It is not a de Polignac number, because 65425849 - 2¹ = 65425847 is a prime.

Together with 65425847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65425847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32712924 + 32712925.

It is an arithmetic number, because the mean of its divisors is an integer number (32712925).

Almost surely, 2^65425849 is an apocalyptic number.

It is an amenable number.

65425849 is a deficient number, since it is larger than the sum of its proper divisors (1).

65425849 is an equidigital number, since it uses as much as digits as its factorization.

65425849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 43.

The square root of 65425849 is about 8088.6246667774. The cubic root of 65425849 is about 402.9487278453.

The spelling of 65425849 in words is "sixty-five million, four hundred twenty-five thousand, eight hundred forty-nine".