65516003 has 16 divisors (see below), whose sum is σ = 76904640. Its totient is φ = 54652416.

The previous prime is 65515997. The next prime is 65516023. The reversal of 65516003 is 30061556.

It is not a de Polignac number, because 65516003 - 2⁴ = 65515987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65516023) 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 15 ways as a sum of consecutive naturals, for example, 50183 + ... + 51471.

It is an arithmetic number, because the mean of its divisors is an integer number (4806540).

Almost surely, 2^65516003 is an apocalyptic number.

65516003 is a deficient number, since it is larger than the sum of its proper divisors (11388637).

65516003 is a wasteful number, since it uses less digits than its factorization.

65516003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 65516003 is about 8094.1956363804. The cubic root of 65516003 is about 403.1337248918.

Adding to 65516003 its reverse (30061556), we get a palindrome (95577559).

The spelling of 65516003 in words is "sixty-five million, five hundred sixteen thousand, three".