65242885 has 4 divisors (see below), whose sum is σ = 78291468. Its totient is φ = 52194304.

The previous prime is 65242883. The next prime is 65242907. The reversal of 65242885 is 58824256.

65242885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32455809 + 32787076 = 5697^2 + 5726^2 .

It is a cyclic number.

It is not a de Polignac number, because 65242885 - 2¹ = 65242883 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65242883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6524284 + ... + 6524293.

It is an arithmetic number, because the mean of its divisors is an integer number (19572867).

Almost surely, 2^65242885 is an apocalyptic number.

It is an amenable number.

65242885 is a deficient number, since it is larger than the sum of its proper divisors (13048583).

65242885 is a wasteful number, since it uses less digits than its factorization.

65242885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13048582.

The product of its digits is 153600, while the sum is 40.

The square root of 65242885 is about 8077.3067912516. The cubic root of 65242885 is about 402.5727605303.

It can be divided in two parts, 6524 and 2885, that added together give a square (9409 = 97²).

The spelling of 65242885 in words is "sixty-five million, two hundred forty-two thousand, eight hundred eighty-five".