65085655 has 8 divisors (see below), whose sum is σ = 80007984. Its totient is φ = 50798400.

The previous prime is 65085649. The next prime is 65085661. The reversal of 65085655 is 55658056.

It is a happy number.

65085655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (65085649) and next prime (65085661).

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

It is not a de Polignac number, because 65085655 - 2²¹ = 62988503 is a prime.

It is a super-2 number, since 2×65085655² = 8472284973558050, which contains 22 as substring.

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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158541 + ... + 158950.

It is an arithmetic number, because the mean of its divisors is an integer number (10000998).

Almost surely, 2^65085655 is an apocalyptic number.

65085655 is a deficient number, since it is larger than the sum of its proper divisors (14922329).

65085655 is a wasteful number, since it uses less digits than its factorization.

65085655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317537.

The product of its (nonzero) digits is 180000, while the sum is 40.

The square root of 65085655 is about 8067.5680970166. The cubic root of 65085655 is about 402.2491112936.

The spelling of 65085655 in words is "sixty-five million, eighty-five thousand, six hundred fifty-five".