64518275 has 12 divisors (see below), whose sum is σ = 81864552. Its totient is φ = 50413440.

The previous prime is 64518271. The next prime is 64518283. The reversal of 64518275 is 57281546.

64518275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64518275 - 2² = 64518271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64518271) 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 11 ways as a sum of consecutive naturals, for example, 28934 + ... + 31083.

It is an arithmetic number, because the mean of its divisors is an integer number (6822046).

Almost surely, 2^64518275 is an apocalyptic number.

64518275 is a deficient number, since it is larger than the sum of its proper divisors (17346277).

64518275 is a wasteful number, since it uses less digits than its factorization.

64518275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60070 (or 60065 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 64518275 is about 8032.3268733288. The cubic root of 64518275 is about 401.0768380316.

The spelling of 64518275 in words is "sixty-four million, five hundred eighteen thousand, two hundred seventy-five".