65725536 has 144 divisors (see below), whose sum is σ = 193100544. Its totient is φ = 19531776.

The previous prime is 65725529. The next prime is 65725537. The reversal of 65725536 is 63552756.

65725536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65725494 and 65725503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65725537) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 638061 + ... + 638163.

It is an arithmetic number, because the mean of its divisors is an integer number (1340976).

Almost surely, 2^65725536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65725536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96550272).

65725536 is an abundant number, since it is smaller than the sum of its proper divisors (127375008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65725536 is a wasteful number, since it uses less digits than its factorization.

65725536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 148 counting only the distinct ones).

The product of its digits is 189000, while the sum is 39.

The square root of 65725536 is about 8107.1287149027. The cubic root of 65725536 is about 403.5630343950.

The spelling of 65725536 in words is "sixty-five million, seven hundred twenty-five thousand, five hundred thirty-six".