65516245 has 8 divisors (see below), whose sum is σ = 78663384. Its totient is φ = 52383744.

The previous prime is 65516203. The next prime is 65516251. The reversal of 65516245 is 54261556.

It can be written as a sum of positive squares in 4 ways, for example, as 43322724 + 22193521 = 6582^2 + 4711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65516245 - 2⁷ = 65516117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65516245.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 13597 + ... + 17773.

It is an arithmetic number, because the mean of its divisors is an integer number (9832923).

Almost surely, 2^65516245 is an apocalyptic number.

It is an amenable number.

65516245 is a deficient number, since it is larger than the sum of its proper divisors (13147139).

65516245 is a wasteful number, since it uses less digits than its factorization.

65516245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7319.

The product of its digits is 36000, while the sum is 34.

The square root of 65516245 is about 8094.2105853505. The cubic root of 65516245 is about 403.1342212501.

It can be divided in two parts, 655 and 16245, that added together give a square (16900 = 130²).

The spelling of 65516245 in words is "sixty-five million, five hundred sixteen thousand, two hundred forty-five".