64256875 has 10 divisors (see below), whose sum is σ = 80296172. Its totient is φ = 51405000.

The previous prime is 64256873. The next prime is 64256903. The reversal of 64256875 is 57865246.

It is not a de Polignac number, because 64256875 - 2¹ = 64256873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64256873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 50781 + ... + 52030.

Almost surely, 2^64256875 is an apocalyptic number.

64256875 is a deficient number, since it is larger than the sum of its proper divisors (16039297).

64256875 is an equidigital number, since it uses as much as digits as its factorization.

64256875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102831 (or 102816 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 64256875 is about 8016.0386101865. The cubic root of 64256875 is about 400.5344418617.

The spelling of 64256875 in words is "sixty-four million, two hundred fifty-six thousand, eight hundred seventy-five".