65475715 has 8 divisors (see below), whose sum is σ = 78699168. Its totient is φ = 52295040.

The previous prime is 65475701. The next prime is 65475719. The reversal of 65475715 is 51757456.

It is a happy number.

65475715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 65475715 - 2¹⁹ = 64951427 is a prime.

It is a super-2 number, since 2×65475715² = 8574138509522450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65475719) by changing a digit.

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, 7222 + ... + 13531.

It is an arithmetic number, because the mean of its divisors is an integer number (9837396).

Almost surely, 2^65475715 is an apocalyptic number.

65475715 is a deficient number, since it is larger than the sum of its proper divisors (13223453).

65475715 is a wasteful number, since it uses less digits than its factorization.

65475715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21389.

The product of its digits is 147000, while the sum is 40.

The square root of 65475715 is about 8091.7065567160. The cubic root of 65475715 is about 403.0510744398.

The spelling of 65475715 in words is "sixty-five million, four hundred seventy-five thousand, seven hundred fifteen".