65782285 has 4 divisors (see below), whose sum is σ = 78938748. Its totient is φ = 52625824.

The previous prime is 65782267. The next prime is 65782291. The reversal of 65782285 is 58228756.

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 38303721 + 27478564 = 6189^2 + 5242^2 .

It is a cyclic number.

It is not a de Polignac number, because 65782285 - 2⁵ = 65782253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6578224 + ... + 6578233.

It is an arithmetic number, because the mean of its divisors is an integer number (19734687).

Almost surely, 2^65782285 is an apocalyptic number.

It is an amenable number.

65782285 is a deficient number, since it is larger than the sum of its proper divisors (13156463).

65782285 is a wasteful number, since it uses less digits than its factorization.

65782285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13156462.

The product of its digits is 268800, while the sum is 43.

The square root of 65782285 is about 8110.6279041761. The cubic root of 65782285 is about 403.6791496417.

The spelling of 65782285 in words is "sixty-five million, seven hundred eighty-two thousand, two hundred eighty-five".