65651005 has 8 divisors (see below), whose sum is σ = 90035712. Its totient is φ = 45017808.

The previous prime is 65650979. The next prime is 65651063. The reversal of 65651005 is 50015656.

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 65651005 - 2⁵ = 65650973 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 7 ways as a sum of consecutive naturals, for example, 937837 + ... + 937906.

It is an arithmetic number, because the mean of its divisors is an integer number (11254464).

Almost surely, 2^65651005 is an apocalyptic number.

It is an amenable number.

65651005 is a deficient number, since it is larger than the sum of its proper divisors (24384707).

65651005 is a wasteful number, since it uses less digits than its factorization.

65651005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875755.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 65651005 is about 8102.5307774793. The cubic root of 65651005 is about 403.4104334694.

The spelling of 65651005 in words is "sixty-five million, six hundred fifty-one thousand, five".