65685051 has 6 divisors (see below), whose sum is σ = 94878420. Its totient is φ = 43790028.

The previous prime is 65685023. The next prime is 65685083. The reversal of 65685051 is 15058656.

It is a de Polignac number, because none of the positive numbers 2^k-65685051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65684997 and 65685015.

It is not an unprimeable number, because it can be changed into a prime (65687051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3649161 + ... + 3649178.

It is an arithmetic number, because the mean of its divisors is an integer number (15813070).

Almost surely, 2^65685051 is an apocalyptic number.

65685051 is a deficient number, since it is larger than the sum of its proper divisors (29193369).

65685051 is a wasteful number, since it uses less digits than its factorization.

65685051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7298345 (or 7298342 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 65685051 is about 8104.6314536813. The cubic root of 65685051 is about 403.4801563833.

The spelling of 65685051 in words is "sixty-five million, six hundred eighty-five thousand, fifty-one".