64611875 has 20 divisors (see below), whose sum is σ = 85004040. Its totient is φ = 48960000.

The previous prime is 64611857. The next prime is 64611881. The reversal of 64611875 is 57811646.

It is not a de Polignac number, because 64611875 - 2¹⁴ = 64595491 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9155 + ... + 14595.

It is an arithmetic number, because the mean of its divisors is an integer number (4250202).

Almost surely, 2^64611875 is an apocalyptic number.

64611875 is a deficient number, since it is larger than the sum of its proper divisors (20392165).

64611875 is an equidigital number, since it uses as much as digits as its factorization.

64611875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5480 (or 5465 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 64611875 is about 8038.1512177863. The cubic root of 64611875 is about 401.2706986214.

It can be divided in two parts, 646 and 11875, that added together give a palindrome (12521).

The spelling of 64611875 in words is "sixty-four million, six hundred eleven thousand, eight hundred seventy-five".