65625275 has 6 divisors (see below), whose sum is σ = 81375372. Its totient is φ = 52500200.

The previous prime is 65625269. The next prime is 65625299. The reversal of 65625275 is 57252656.

It is not a de Polignac number, because 65625275 - 2¹⁴ = 65608891 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1312481 + ... + 1312530.

It is an arithmetic number, because the mean of its divisors is an integer number (13562562).

Almost surely, 2^65625275 is an apocalyptic number.

65625275 is a deficient number, since it is larger than the sum of its proper divisors (15750097).

65625275 is a wasteful number, since it uses less digits than its factorization.

65625275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625021 (or 2625016 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The square root of 65625275 is about 8100.9428463605. The cubic root of 65625275 is about 403.3577249249.

The spelling of 65625275 in words is "sixty-five million, six hundred twenty-five thousand, two hundred seventy-five".