65475065 has 4 divisors (see below), whose sum is σ = 78570084. Its totient is φ = 52380048.

The previous prime is 65475061. The next prime is 65475133. The reversal of 65475065 is 56057456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30558784 + 34916281 = 5528^2 + 5909^2 .

It is a cyclic number.

It is not a de Polignac number, because 65475065 - 2² = 65475061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65475061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6547502 + ... + 6547511.

It is an arithmetic number, because the mean of its divisors is an integer number (19642521).

Almost surely, 2^65475065 is an apocalyptic number.

It is an amenable number.

65475065 is a deficient number, since it is larger than the sum of its proper divisors (13095019).

65475065 is a wasteful number, since it uses less digits than its factorization.

65475065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13095018.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 65475065 is about 8091.6663920357. Note that the first 3 decimals coincide. The cubic root of 65475065 is about 403.0497406930.

The spelling of 65475065 in words is "sixty-five million, four hundred seventy-five thousand, sixty-five".