65825855 has 8 divisors (see below), whose sum is σ = 79173600. Its totient is φ = 52538976.

The previous prime is 65825843. The next prime is 65825909. The reversal of 65825855 is 55852856.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65825855 - 2¹² = 65821759 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 12800 + ... + 17189.

It is an arithmetic number, because the mean of its divisors is an integer number (9896700).

Almost surely, 2^65825855 is an apocalyptic number.

65825855 is a deficient number, since it is larger than the sum of its proper divisors (13347745).

65825855 is a wasteful number, since it uses less digits than its factorization.

65825855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30433.

The product of its digits is 480000, while the sum is 44.

The square root of 65825855 is about 8113.3134414985. The cubic root of 65825855 is about 403.7682537668.

The spelling of 65825855 in words is "sixty-five million, eight hundred twenty-five thousand, eight hundred fifty-five".