64475 has 6 divisors (see below), whose sum is σ = 79980. Its totient is φ = 51560.

The previous prime is 64453. The next prime is 64483. The reversal of 64475 is 57446.

It is not a de Polignac number, because 64475 - 2¹⁴ = 48091 is a prime.

It is a plaindrome in base 13.

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, 1265 + ... + 1314.

It is an arithmetic number, because the mean of its divisors is an integer number (13330).

2⁶⁴⁴⁷⁵ is an apocalyptic number.

64475 is a deficient number, since it is larger than the sum of its proper divisors (15505).

64475 is a wasteful number, since it uses less digits than its factorization.

64475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589 (or 2584 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 64475 is about 253.9192785119. The cubic root of 64475 is about 40.0987145190.

The spelling of 64475 in words is "sixty-four thousand, four hundred seventy-five".