65472805 has 8 divisors (see below), whose sum is σ = 78688152. Its totient is φ = 52297728.

The previous prime is 65472733. The next prime is 65472811. The reversal of 65472805 is 50827456.

It is a happy number.

65472805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10029889 + 55442916 = 3167^2 + 7446^2 .

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 65472805 - 2⁷ = 65472677 is a prime.

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, 6364 + ... + 13093.

It is an arithmetic number, because the mean of its divisors is an integer number (9836019).

Almost surely, 2^65472805 is an apocalyptic number.

It is an amenable number.

65472805 is a deficient number, since it is larger than the sum of its proper divisors (13215347).

65472805 is a wasteful number, since it uses less digits than its factorization.

65472805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20135.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 65472805 is about 8091.5267409803. The cubic root of 65472805 is about 403.0451032895.

The spelling of 65472805 in words is "sixty-five million, four hundred seventy-two thousand, eight hundred five".