64510475 has 6 divisors (see below), whose sum is σ = 79993020. Its totient is φ = 51608360.

The previous prime is 64510421. The next prime is 64510519. The reversal of 64510475 is 57401546.

64510475 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 64510475 - 2²² = 60316171 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 1290185 + ... + 1290234.

It is an arithmetic number, because the mean of its divisors is an integer number (13332170).

Almost surely, 2^64510475 is an apocalyptic number.

64510475 is a deficient number, since it is larger than the sum of its proper divisors (15482545).

64510475 is a wasteful number, since it uses less digits than its factorization.

64510475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580429 (or 2580424 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 64510475 is about 8031.8413206437. The cubic root of 64510475 is about 401.0606745212.

The spelling of 64510475 in words is "sixty-four million, five hundred ten thousand, four hundred seventy-five".