65747825 has 48 divisors (see below), whose sum is σ = 97868736. Its totient is φ = 43180800.

The previous prime is 65747791. The next prime is 65747827. The reversal of 65747825 is 52874756.

It is not a de Polignac number, because 65747825 - 2¹⁴ = 65731441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65747827) 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 47 ways as a sum of consecutive naturals, for example, 189302 + ... + 189648.

It is an arithmetic number, because the mean of its divisors is an integer number (2038932).

Almost surely, 2^65747825 is an apocalyptic number.

65747825 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65747825 is a deficient number, since it is larger than the sum of its proper divisors (32120911).

65747825 is a wasteful number, since it uses less digits than its factorization.

65747825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 429 counting only the distinct ones).

The product of its digits is 470400, while the sum is 44.

The square root of 65747825 is about 8108.5032527588. The cubic root of 65747825 is about 403.6086483243.

The spelling of 65747825 in words is "sixty-five million, seven hundred forty-seven thousand, eight hundred twenty-five".