65620325 has 6 divisors (see below), whose sum is σ = 81369234. Its totient is φ = 52496240.

The previous prime is 65620309. The next prime is 65620333. The reversal of 65620325 is 52302656.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 20448484 + 45171841 = 4522^2 + 6721^2 .

It is not a de Polignac number, because 65620325 - 2⁴ = 65620309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1312382 + ... + 1312431.

It is an arithmetic number, because the mean of its divisors is an integer number (13561539).

Almost surely, 2^65620325 is an apocalyptic number.

It is an amenable number.

65620325 is a deficient number, since it is larger than the sum of its proper divisors (15748909).

65620325 is a wasteful number, since it uses less digits than its factorization.

65620325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624823 (or 2624818 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 65620325 is about 8100.6373206063. The cubic root of 65620325 is about 403.3475831467.

The spelling of 65620325 in words is "sixty-five million, six hundred twenty thousand, three hundred twenty-five".