65916025 has 24 divisors (see below), whose sum is σ = 95331200. Its totient is φ = 45193680.

The previous prime is 65916017. The next prime is 65916061. The reversal of 65916025 is 52061956.

It is a happy number.

It is not a de Polignac number, because 65916025 - 2³ = 65916017 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 4732 + ... + 12418.

Almost surely, 2^65916025 is an apocalyptic number.

It is an amenable number.

65916025 is a deficient number, since it is larger than the sum of its proper divisors (29415175).

65916025 is an equidigital number, since it uses as much as digits as its factorization.

65916025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7718 (or 7699 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 65916025 is about 8118.8684556408. The cubic root of 65916025 is about 403.9525337986.

The spelling of 65916025 in words is "sixty-five million, nine hundred sixteen thousand, twenty-five".