65025985 has 4 divisors (see below), whose sum is σ = 78031188. Its totient is φ = 52020784.

The previous prime is 65025973. The next prime is 65026001. The reversal of 65025985 is 58952056.

65025985 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 31013761 + 34012224 = 5569^2 + 5832^2 .

It is a cyclic number.

It is not a de Polignac number, because 65025985 - 2⁵ = 65025953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 6502594 + ... + 6502603.

It is an arithmetic number, because the mean of its divisors is an integer number (19507797).

Almost surely, 2^65025985 is an apocalyptic number.

It is an amenable number.

65025985 is a deficient number, since it is larger than the sum of its proper divisors (13005203).

65025985 is a wasteful number, since it uses less digits than its factorization.

65025985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13005202.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 65025985 is about 8063.8691085607. The cubic root of 65025985 is about 402.1261474689.

The spelling of 65025985 in words is "sixty-five million, twenty-five thousand, nine hundred eighty-five".