65528725 has 12 divisors (see below), whose sum is σ = 84789216. Its totient is φ = 50143280.

The previous prime is 65528707. The next prime is 65528759. The reversal of 65528725 is 52782556.

It is not a de Polignac number, because 65528725 - 2⁷ = 65528597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56407 + ... + 57556.

It is an arithmetic number, because the mean of its divisors is an integer number (7065768).

Almost surely, 2^65528725 is an apocalyptic number.

It is an amenable number.

65528725 is a deficient number, since it is larger than the sum of its proper divisors (19260491).

65528725 is a wasteful number, since it uses less digits than its factorization.

65528725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113996 (or 113991 counting only the distinct ones).

The product of its digits is 168000, while the sum is 40.

The square root of 65528725 is about 8094.9814700220. The cubic root of 65528725 is about 403.1598169155.

The spelling of 65528725 in words is "sixty-five million, five hundred twenty-eight thousand, seven hundred twenty-five".