65425 has 6 divisors (see below), whose sum is σ = 81158. Its totient is φ = 52320.

The previous prime is 65423. The next prime is 65437. The reversal of 65425 is 52456.

It can be written as a sum of positive squares in 3 ways, for example, as 18769 + 46656 = 137^2 + 216^2 .

It is not a de Polignac number, because 65425 - 2¹ = 65423 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 65396 and 65405.

It is not an unprimeable number, because it can be changed into a prime (65423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1284 + ... + 1333.

2⁶⁵⁴²⁵ is an apocalyptic number.

It is an amenable number.

65425 is a deficient number, since it is larger than the sum of its proper divisors (15733).

65425 is a wasteful number, since it uses less digits than its factorization.

65425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627 (or 2622 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 65425 is about 255.7831112486. The cubic root of 65425 is about 40.2946984880.

The spelling of 65425 in words is "sixty-five thousand, four hundred twenty-five".