65782725 has 24 divisors (see below), whose sum is σ = 109448352. Its totient is φ = 34862400.

The previous prime is 65782721. The next prime is 65782753. The reversal of 65782725 is 52728756.

It is not a de Polignac number, because 65782725 - 2² = 65782721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65782721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9535 + ... + 14915.

It is an arithmetic number, because the mean of its divisors is an integer number (4560348).

Almost surely, 2^65782725 is an apocalyptic number.

It is an amenable number.

65782725 is a deficient number, since it is larger than the sum of its proper divisors (43665627).

65782725 is a wasteful number, since it uses less digits than its factorization.

65782725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557 (or 5552 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 65782725 is about 8110.6550290343. The cubic root of 65782725 is about 403.6800496734.

The spelling of 65782725 in words is "sixty-five million, seven hundred eighty-two thousand, seven hundred twenty-five".