65501003 has 4 divisors (see below), whose sum is σ = 65572440. Its totient is φ = 65429568.

The previous prime is 65500993. The next prime is 65501021. The reversal of 65501003 is 30010556.

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

It is a cyclic number.

It is not a de Polignac number, because 65501003 - 2¹⁰ = 65499979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65501203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34325 + ... + 36182.

It is an arithmetic number, because the mean of its divisors is an integer number (16393110).

Almost surely, 2^65501003 is an apocalyptic number.

65501003 is a deficient number, since it is larger than the sum of its proper divisors (71437).

65501003 is an equidigital number, since it uses as much as digits as its factorization.

65501003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71436.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 65501003 is about 8093.2689934290. The cubic root of 65501003 is about 403.1029564935.

Adding to 65501003 its reverse (30010556), we get a palindrome (95511559).

The spelling of 65501003 in words is "sixty-five million, five hundred one thousand, three".