64995075 has 24 divisors (see below), whose sum is σ = 119399600. Its totient is φ = 34663680.

The previous prime is 64995071. The next prime is 64995101. The reversal of 64995075 is 57059946.

It is a happy number.

It is not a de Polignac number, because 64995075 - 2² = 64995071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64995075.

It is not an unprimeable number, because it can be changed into a prime (64995071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47470 + ... + 48819.

Almost surely, 2^64995075 is an apocalyptic number.

64995075 is a deficient number, since it is larger than the sum of its proper divisors (54404525).

64995075 is a wasteful number, since it uses less digits than its factorization.

64995075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96308 (or 96297 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 64995075 is about 8061.9523069788. The cubic root of 64995075 is about 402.0624206925.

The spelling of 64995075 in words is "sixty-four million, nine hundred ninety-five thousand, seventy-five".